this is awesome! I've always wanted to do that. is it a surboard fin? do watercolors work on that?
I actually bought this spray gesso. I tried it and it worked fine.....give it a good 2 coat though. Then I just drew on there with pencil and scanned it on the scanner and PS on top of it. Watercolor works on gesso, kinda have to play around with it at first. I'm still messing around with this new approach and finding some new mistakes.