WOW Your cake sure is GIANT. Great work on it. detail and everything. How many layers is it?
It would depend on what size layers and how many you used. You did a great job.
it is a total of 4 layers of cakes. 2 18x12" cakes each torted and stacked then carved.
!/2 sheet feeds 40-48 people, plus extra for filling ( depends on what you paid for it). Figure it by what cakes go for where you live, but more important what you charge for a half sheet x2 and then for carving which is extra too. I can't give you a number but hopefully this will give you a start.