Line Drawings for Children - In-Progress

My current mini-project that I'm doing with/for the kids at work is a coloring sheet with numbers - sort of a color-by-numbers idea, except the key for coloring is math based. I haven't added the numbers to the line art yet, so it's just a bunch of straight lines right now.

This is a falcon, when colored in properly.

This is a little more obvious - it's a cheetah! Running! There's supposed to be green grass on the ground, blue sky, yellow cat, and black spots.