If you choose to play as a female, then you'll get the full body type selections available to the existing girls. If you play as a male, then you'll be limited to Apple and Overall body types only.
Adding more eye colours won't be any trouble at all, I'll include those in the next update!
The next update will bring ten more Feeder upgrades for you to unlock, and Gourmand III will be one of them. :)
A shower sex scene would be cool. I have been thinking about adding some random elements to the sex scene to make it more interesting. A shower setting could be part of that.