Excellent work @infamy! I appreciate that you went further than the expectation (blockout) and you’re introducing details warped by a lattice. For the effort you get full points this week, easy 👏
However! The canvas is begging to be sculpted. All you will need is a simple plane in the general shape of the art and then it’s sculpting time! If you’re in the stream tomorrow, remind me and I’ll do a little demo. But here’s a video about sculpting fabric (old Blender version but relevant concepts).
