Hi! My two cents...
BaBeeCee14 hit the nail on the head: I think you'll have no problem getting that design replicated by the bakery. The color is a different story, but if you submitted swatches (maybe paint chips from the hardware store even?) you'll have a better chance. As for cost, I had them make a 3-layer version of a 4-layer design and it was $725. I have no idea how they figure that out, though!
Villas: We stayed at Beach Club Villas for the first week (including the night before the wedding for just me) and Animal Kingdom Villas the second week. AKV's studio was cool looking but small cuz it's a converted hotel room.
Our BCV studio was GREAT! I was able to lay out all my wedding crap the night before and have plenty of room for hair, makeup and dress steaming (mind you it was just me, the makeup artist and the 2 people from Carolyn Allens in there - no bridesmaids, etc.). And walking to Epcot was the highlight of our stay. Well, that and seeing MK fireworks from our balcony!
Anyway, I highly recommend staying at the Villas, especially if you can rent points like we did. It was cheaper than staying at POFQ!