I decided to choose the head on the right as it feels most successful and a slightly improved shape to what I had in the drawing. It certainly feels robotic and eye-like.
|Robot Spider eye/head front|
|Robot Spider eye/head side|
|Robot Spider eye/head back|
I have created sections on the side panels where the legs are going to be placed so I will now work on those to have a complete model for the drone class of spiders. I have included a front, back and side view to show how the model is working from these angles.