Where can I improve or add anything?

This is a gift for my 5 year old niece. She chose the hummingbird and I took liberties with the flowers and color choices. I think it’s good, but there’s a part of me that thinks more should be added… but “less is more” and im worried if I add anything else it might be too crowded or overwhelming. Idk what I would even add. What do you think? What would you do if it was yours? Thank you!