Tough choice. They are all pretty similar. You will win with which ever one, but I am with @wellington for choices.I like the top left, it's lighter than the other two. Also the bottom one, I like how the lighter color on him is bright.
All other things being equal, I would go with the largest one.Which hatchling would you select? They are all so beautiful. Just wanted opinions. Image courtesy of TortstorkView attachment 360957