Update first-hypermode-agent.mdx

Author: fengjessica

first-hypermode-agent.mdx

@@ -28,7 +28,7 @@ Tom is included with the Hypermode free tier and is a great way to get
 started with Hypermode Agents by learning how to interact with agents and add
 [connections](/agents/connections).
 
-![Sidekick](/images/tutorials/first-hypermode-agent/sidekick.png)
+![Sidekick](/images/tutorials/first-hypermode-agent/tom-anderson.png)
 
 Connections give our agents access to external tools and services, such as
 Google Calendar, email, Slack, and more.