1. Create a survey part in NetCommunity
2. Create one question and make the type: Choice - One Answer (vertical)
3. Each answer will be a link to the image Ex: <img src="image.jpg">
4. Make sure the separate images are all on separate answer lines
5. Hit OK
6. Save and close part
7. View page with part on, you will see a radio button next to each image
8. User can vote on which one they like best