What I like most about this is the composition of varied shapes. It is very well considered, with variation in the shapes that keep the viewer's eye moving towards the COI. I have not attempted anything like this, but I would think something that appears simplistic in design requires a lot of planning. For example, not having any of the edges of the shapes bisect the cat, or end at the edges of the cat's features, like the tips of the ears. Wonderful collection curves and lines that complement the subject perfectly.