Nice Drawings and Theme...
Loved the water animations and the educational theme... well done. Drawings could benefit from varying the line quality (thick outline, thinner inner lines), but were done very neat for a polished look. Image planes could benefit from changing color and making the objects further from the camera less saturated or cooler in value. Some bulls-eye composition issues in your framing... consider moving some of the objects like the chicks off to the side and changing the angle to 3/4 instead of frontal view. The basket could be made to look more natural as opposed to a weaved basket.