My Children's Graphics

I created a series of toys called Park Pals that is to help promote and teach children about their state's National Park. With the toy, I am also including a poster showing the state and its different parks. As well as a puzzle piece that will be about one of the parks in the state. For my examples I made the Park Pal for California, this includes a poster of California as well as a puzzle piece showing Yosemite National Park. I am wanting any feedback on my poster and puzzle piece design. I'm worried that it might not be bright enough or be too simple for children. I have looked at different graphics geared toward children as well as graphics made by different National Parks.

Park Pal Poster

Puzzle Piece