Here are a few engine covers that I have done over the years. Most of them have a little creative twist. In most cases you have to see the car to appreciate the design.
This one was done most recently for my buddy Mike. The engine cover had already been painted to match his car but he wanted something to tie it in more. I suggested trying to match his snakeskin leather inserts on his seats. I think it came out really cool and unique.
I started w/ a custom grey metallic base and then used fish net stalkings to achieve the snake skin effect(no, they weren't mine.)
It was then finished off w/ a satin clear and black pinstrip to separate the two half's.