Commission::17

I chose to critique this picture because it displays all of the most prominent problems in your gallery.

I believe someone else mentioned that all of your characters look the same. It kind of bothers me that your little friend tried to say that they don't because they all obviously share the same features. The eyes, nose, and mouth all look identical in these different characters and they all share the same body and facial structure. The eyes are cute I suppose but it would really help if the characters had differently shaped eyes and noses. Same thing with the chins and bodies. Just try using different shapes for once.

On to anatomy...
Putting the arms behind the back to avoid drawing hands is pretty a lazy technique. It looks lazy and it greatly limits your pose options. Cartoon hands really aren't that hard to draw of you find the right tutorials so just keep practicing.

The lineart looks pretty clean but I would try to vary line thickness (it adds more life to the picture). The coloring is amateurish, but it's something that would be easier to look past if you tried to improve the other things mentioned.

Just keep on working and you'll get better!