Hello @nagaraj007 ,
please follow these steps:
1. After your HTTP request, create a file in OneDrive or SharePoint:

2. Get file content:

3. Compose action in which put the following expression:
base64(outputs('Get_file_content')?['body'])

4. Initialize a string variable in which put the following string:
<img src="data:image/png;base64,@{outputs('Compose')}" width="100" height="90">

5. Finally add the variable into the email body.

If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.
BR,
Marco