Whew... Time for a review on all three!
King Mickey

ros+
Alright. I am going to go ahead and say that this is your best of the three. Really, I don't see much wrong with the whole picture! The detail of everything is exquisite. The dark atmosphere really seems to be there. No missing or cut off lines. A couple of more but I am two lazy for the rest!
King Mickey Cons-
Like some have said, the deformed arm is noticable and there. His hand doesn't really look like it is in the pocket either. The last thing is that his shadow doesn't match the body.
King Mickey Final
Alright, to make this short and sweet, this one is better than average. I give "King Mickey" a 4.1 out of 5.0
Some Guy I doodled in School Pros+
Nothing too wrong with hands, clothes, or head. Thats about it.
Some Guy I doodled in School Cons-
On eye is bigger and at a different elevation than the other. There arn't too many details and what the heck is behind him???
Some Guy I doodled in School Final
This picture has a lot of potential to be alright. Just the execution of the picture wasn't impressing. Thats why I give "Some Guy I doodled in School" a 2.4 out of 5.0. But, I was a doodle, so I have to give you credit.
Blob Pros+
A nice background. Details in the character and floor where he stands.
Some what amusing.
Blob Cons-
Not enough details.
Blob Final
Not too many Pros or Cons. Well, I guess I will give Blob a 3.0 out of 5.0.