Here's a four by four square of vintage butterflies. The block looks a bit weird by itself, but I like how well they go together.
I've made twenty blocks so far and have only five more to make. I will either need to replace the very light block in the upper right hand corner, or make more light blocks that I can sprinkle around the quilt for balance. For the most part, I have just been grabbing multi-colored fabrics (usually with either butterflies or cats) and building the block off of that.