how would you decorate a full sheet cake for a 60th graduation reunion? Customer requested edible photo of school in center (worry about it cracking) and colors are orange/black? thanks for your input...This would be a full sheet cake (2 11x15 together)...

Sounds like you already know how it should be decorated, via the customers request....edible picture....orange and black border...doesn't matter how we would decorate it but rather what they asked for....