It sounded like you, but it sounded better.
Very nice work on the frog outline compared to your previous work.
Besides sketching this and then doing the volumes by shading with a pencil, which you should totally do, there's another way to practice this:
Try one dark colour outline (black is fine for this practice), and two colours (one light, and one dark) for the inside. Greys are fine. You can use more colours later for more practice, but for now these three should be enough.
This way you can just define the volumes - you can practice how the light works. If you understand how lighting works (or want practice), you should be able to do (or try) this.
Look at the other frog shown to you there, compare it to yours. His looks like a solid object, with bright light catching above the lip, on the protruding chin, and then shadows where no light falls at all. Your frog, no offense
looks like he is absorbing light most of the way through his body, somehow. He's not just one ball - he's a bundle of 3d shapes mushed together, as said above. Shading this all in with pencil is the practice people have been talking about.
Still, I think you're improving when it comes to doing the overall shape.
