diff --git a/Data-databases.html b/Data-databases.html
index 0c21368..be6d72e 100644
--- a/Data-databases.html
+++ b/Data-databases.html
@@ -234,7 +234,7 @@ <h3>Database & Database management systems (DBMS)</h3>
                     <ul>
                         <p><strong>Types of DBMSs:</strong></p>
                         <p>There are different types of DBMSs:</p>
-                        <img src="assets/img/portfolio/database-types.png" alt="" style="max-width: 500px; max-height: 500px;">
+                        <img src="assets/img/portfolio/database-types.png" alt="" style="max-width: 90%; max-height: 90%;">
                         </br>
                         <ol>
                             <li><strong>Relational DBMS: </strong>
diff --git a/assets/img/portfolio/datawarehouse-3tier.png b/assets/img/portfolio/datawarehouse-3tier.png
new file mode 100644
index 0000000..136bbe1
Binary files /dev/null and b/assets/img/portfolio/datawarehouse-3tier.png differ
diff --git a/content-page.html b/content-page.html
index 55f2f85..19fd2be 100644
--- a/content-page.html
+++ b/content-page.html
@@ -164,7 +164,6 @@ <h3>1. Data</h3>
                         <td><a href="Data-databases.html">Data and Databases</a></td>
                         <td>Delve into the intricacies of databases, their types, and effective database management systems.</td>
                     </tr>
-                    
                     <tr>
                         <td>3.</td>
                         <td><a href="datawarehouse-datalake.html">Data Warehouse and Data Lake</a></td>
diff --git a/datawarehouse-datalake.html b/datawarehouse-datalake.html
index 740c682..787f192 100644
--- a/datawarehouse-datalake.html
+++ b/datawarehouse-datalake.html
@@ -215,6 +215,11 @@ <h5>How does a data warehouse work?</h5>
 
 
                 <h5>Architecture of the datawarehouse</h5>
+                <figure style="text-align: center;">
+                    <img src="assets/img/portfolio/datawarehouse-3tier.png" alt="" style="max-width: 90%; max-height: 90%;">
+                    <figcaption style="text-align: center;"><strong>Image reference:</strong><a href="https://panoply.io/data-warehouse-guide/data-warehouse-architecture-traditional-vs-cloud/" target="_blank"> panoply</a> </figcaption>
+                  </figure>
+
                 
                 <ul style="list-style-type: disc; margin-left: 30px;">
                     <p>The three-tier architecture of a data warehouse involves three distinct layers, each serving specific functions in the data processing and reporting pipeline.