Wedding cake with lots of piping

I didn't deliver this one so I don't have a good picture at the moment. This was also the first time I did sheet cakes. I didn't know what I should charge but I learned from this what it costs me and what it would be worth for my time. It is significantly more than a costco cake but I don't buy wholesale or make a million at a time of them with giant Hobart mixers and ovens. Sooooooo, the cost is $75 a cake. They serve between 65-80 people.