1st Frog: It's got hideous lips and eyes. And I'm not sure if the orange pegs under its body is supposed to be its legs. Shading is smoother and good hue shifts.

2nd Frog: Good creativity, like the hat and its accessories. Interesting body shape as well. But terrible lineart. Feels too jagged and the shading is fairly interesting but somewhat too random especially on its knees where there are random green highlight strands there.