being your first shell to paint, go something easy.. remember to do light coats not heavy coats, prep the shell, use the masks. if you back it with a solid colour it will look sweet, but personally id go for a purple and green combo.. just my 0.2c.. will find a pic of a shell i done a while back..
probably seen the pic but purple n green are meant to be seen

Fluro colours look good. but should be backed with a white or a silver for the full effect...

or you can go a nice solid colour, the roof is done with a 'window tint'
