My son's sculpture

My son created this sculpture when he was in high school. I quickly titled it Graham Chapman's Head. It's one of my favorite pieces of art in our home. The flower pot came from a market in Germany. It fell when I was moving some furniture over 30 years ago. I pieced it together because I couldn't stand to part with it.  I love the color, the floral art, even the weight of it. The frog is an ink stamp from Mexico. The stamp is underneath. The book is La Fontaine's Fables illustrated by Gustav Dore from 1868.