Awesome

So this was pretty awesome I really like the structure here I like the bubble clouds I like the thinking process by the two so this was cool and very creative you have outdone yourself here on this piece and I really enjoyed this very creative style so nice job make more soon

~~THINGS TO IMPROVE ON~~
Make more pieces like this

~X~

Looks good! A very cute and warm style.
But there are some things that look like it would be best if you worked on!

The position of the boys foot (on far left) seem too close to the viewer. (which makes his left foot look too far back!)
And his shirt seems to be facing more towards the viewer than the direction he's facing. The opening on the shirt should be slightly more to the left.

The lighting and shadows on the bodies are really good, though maybe look at what floor shadows look like in real life. The floor shadow makes the floor look like it's more like it's on a wall and less like it's on the floor.

So the main issue here seem to be with perspective and foreshortening.
But you can practice this by getting objects in your house and trying to draw them from life, while trying to mentally break down the shapes into simpler shapes if you can. (Eg a table could be a cube, a bottle could be a cylinder) If there are any ornaments in your home look at those (they often have weird shapes so can be some of the best to learn how to break down into simple shapes)

(Or you can look up tutorials on Perspective and Foreshortening on YT)

Try looking at where the light in the room is, and where the shadow is being cast, and try to draw the direction of light in the corner if it helps.

I hope that's helpful in helping you to improve.
Good luck and keep up the hard work!