Hummingbird Goes to the Aquarium

I am working on some illustrations for a character I envisioned many months ago named Hummingbird. At this time, she is a ten year old girl, although that may change down the road. In these illustrations, I am thinking about putting her in various scenarios in an aquarium, where she is thinking about the real creatures she is seeing and the fantasy creatures she encounters in books (mermaids, seahorses, underwater titans, etc).

Here are a few sketches. I will be working on these in the fall, bringing them to full color along with several other sketches. There is no real endpoint here; simply a bunch of fun illustrations that challenge me with various scenarios and lighting situations and a slight storyline for my character.