I really like your second choice. Lots of colors and movement. I took a OBW class and ended up with a quilt that was at least a single bed size. My teacher recommended oriental prints as you get very specific repeats on them and you will need 6 repeats of the fabric pattern. It's actually a very simple quilt to make. You just need to be very accurate in layering your repeats and in your cutting and sewing. If you are buying fabric just for an OBW quilt ask your salesperson if she has one of those right-angle mirrors so you can view the fabric from different angles. Mine had one and we went all over the store with it looking at fabric.