diff --git a/scripts/create_artwork_vote_counts_view.js b/scripts/create_artwork_vote_counts_view.js
new file mode 100644
index 0000000..be0d4b6
--- /dev/null
+++ b/scripts/create_artwork_vote_counts_view.js
@@ -0,0 +1,43 @@
+const { Pool } = require('pg');
+require('dotenv').config();
+
+const createViewQuery = `
+CREATE OR REPLACE VIEW artwork_vote_counts AS
+SELECT 
+    a.id AS artwork_id,
+    a.title,
+    a.category,
+    a.image_url,
+    p.participant_name,
+    p.department,
+    p.year,
+    COUNT(v.id) AS vote_count
+FROM artworks a
+JOIN participants p ON a.participant_id = p.id
+LEFT JOIN votes v ON a.id = v.artwork_id
+GROUP BY a.id, a.title, a.category, a.image_url, p.participant_name, p.department, p.year
+ORDER BY vote_count DESC;
+`;
+
+async function createView() {
+    const pool = new Pool({
+        connectionString: process.env.DATABASE_URL,
+    });
+
+    try {
+        console.log('Connecting to the database...');
+        const client = await pool.connect();
+
+        console.log('Creating or replacing artwork_vote_counts view...');
+        await client.query(createViewQuery);
+
+        console.log('artwork_vote_counts view created or replaced successfully.');
+        client.release();
+    } catch (error) {
+        console.error('Error creating artwork_vote_counts view:', error);
+    } finally {
+        await pool.end();
+    }
+}
+
+createView();
\ No newline at end of file
diff --git a/scripts/create_artworks_table.js b/scripts/create_artworks_table.js
new file mode 100644
index 0000000..2ef57d0
--- /dev/null
+++ b/scripts/create_artworks_table.js
@@ -0,0 +1,37 @@
+const { Pool } = require('pg');
+require('dotenv').config();
+
+const createTableQuery = `
+CREATE TABLE IF NOT EXISTS artworks (
+    id SERIAL PRIMARY KEY,
+    participant_id INT NOT NULL REFERENCES participants(id) ON DELETE CASCADE,
+    category VARCHAR(50) NOT NULL CHECK (category IN ('digital', 'handdrawn', 'poster')),
+    image_url TEXT NOT NULL,
+    title VARCHAR(255) NOT NULL,
+    created_at TIMESTAMP DEFAULT NOW(),
+    CONSTRAINT unique_participant_category UNIQUE (participant_id, category)
+);
+`;
+
+async function createTable() {
+    const pool = new Pool({
+        connectionString: process.env.DATABASE_URL,
+    });
+
+    try {
+        console.log('Connecting to the database...');
+        const client = await pool.connect();
+
+        console.log('Creating artworks table if it does not exist...');
+        await client.query(createTableQuery);
+
+        console.log('Artworks table created or already exists.');
+        client.release();
+    } catch (error) {
+        console.error('Error creating artworks table:', error);
+    } finally {
+        await pool.end();
+    }
+}
+
+createTable();
\ No newline at end of file
diff --git a/scripts/create_participant_table.js b/scripts/create_participants_table.js
similarity index 65%
rename from scripts/create_participant_table.js
rename to scripts/create_participants_table.js
index 2702f59..d140dfb 100644
--- a/scripts/create_participant_table.js
+++ b/scripts/create_participants_table.js
@@ -4,18 +4,13 @@ require('dotenv').config();
 const createTableQuery = `
 CREATE TABLE IF NOT EXISTS participants (
     id SERIAL PRIMARY KEY,
-    user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    user_id INT UNIQUE REFERENCES users(id) ON DELETE SET NULL,
+    email VARCHAR(255) UNIQUE NOT NULL,
     participant_name VARCHAR(255) NOT NULL,
-    email VARCHAR(255) NOT NULL,
-    year INTEGER NOT NULL,
+    year INT CHECK (year BETWEEN 1 AND 4),
+    department VARCHAR(255),
     phone_number VARCHAR(15),
-    is_digital_art BOOLEAN DEFAULT false,
-    digital_art_link TEXT DEFAULT NULL,
-    is_handdrawn BOOLEAN DEFAULT false,
-    handdrawn_link TEXT DEFAULT NULL,
-    is_poster BOOLEAN DEFAULT false,
-    poster_link TEXT DEFAULT NULL,
-    CONSTRAINT fk_user FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+    created_at TIMESTAMP DEFAULT NOW()
 );
 `;
 
diff --git a/scripts/create_users_table.js b/scripts/create_users_table.js
index 77fb143..163ba3c 100644
--- a/scripts/create_users_table.js
+++ b/scripts/create_users_table.js
@@ -6,7 +6,8 @@ CREATE TABLE IF NOT EXISTS users (
     id SERIAL PRIMARY KEY,
     email VARCHAR(255) UNIQUE NOT NULL,
     name VARCHAR(255),
-    user_type VARCHAR(50) DEFAULT 'audience' NOT NULL
+    user_type VARCHAR(50) NOT NULL DEFAULT 'audience' CHECK (user_type IN ('audience', 'participant', 'admin', 'moderator')),
+    created_at TIMESTAMP DEFAULT NOW()
 );
 `;
 
diff --git a/scripts/create_votes_table.js b/scripts/create_votes_table.js
new file mode 100644
index 0000000..fe61d4e
--- /dev/null
+++ b/scripts/create_votes_table.js
@@ -0,0 +1,35 @@
+const { Pool } = require('pg');
+require('dotenv').config();
+
+const createTableQuery = `
+CREATE TABLE IF NOT EXISTS votes (
+    id SERIAL PRIMARY KEY,
+    user_id INT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    artwork_id INT NOT NULL REFERENCES artworks(id) ON DELETE CASCADE,
+    created_at TIMESTAMP DEFAULT NOW(),
+    CONSTRAINT unique_user_artwork_vote UNIQUE (user_id, artwork_id)
+);
+`;
+
+async function createTable() {
+    const pool = new Pool({
+        connectionString: process.env.DATABASE_URL,
+    });
+
+    try {
+        console.log('Connecting to the database...');
+        const client = await pool.connect();
+
+        console.log('Creating votes table if it does not exist...');
+        await client.query(createTableQuery);
+
+        console.log('Votes table created or already exists.');
+        client.release();
+    } catch (error) {
+        console.error('Error creating votes table:', error);
+    } finally {
+        await pool.end();
+    }
+}
+
+createTable();
\ No newline at end of file