One A5 watercolour portrait of your sweet baby angel.
Bird, fox, dog, cat, fish, snail, anything.
For most creatures, you'll get a traditional portrait - that is, head & shoulders, not fully body. This lets me get enough detail in to the piece, while still keeping it pretty small.
For like, insects and stuff, I think it's safe to assume that I'll be able to fit a full body portrait on the page.
WHAT I'D NEED:
Some super good quality images of your angel.
Honestly, there's nothing more stressful than pictures taken from a phone in 2004. It's almost impossible to get detail in, and maintain the authenticity of it actually being your pooch (or cat, or bird, etc).