The original painting is 20" x 24", which is bigger than most of the others.
The idea of painting living things with vertical colors is from Rabo Karebekian, one of the under appreciated original Abstract Expressionists. He's also a fictional creation of Kurt Vonnegut, so there's that.
There's some Vonnegut references in here. Can you find them? The background is architecture from Dresden, so there's that, too.
The print size options correspond to common frame sizes, so you can just plop your print right in a frame, no need to mat it.
Printed locally (for me, at least) in Orlando, FL with archival, acid-free ink on archival, acid-free paper so they are sure to outlive your interest in them.