Nice job.
Must be honest tho, at first glance at this , it reads a little sexual with the the monsters thumb position, the kids face and position/height level. It looks like hes pleasuring him. lol Someone confirm this or am i going crazy.
It kind of makes it even more funny and amusing to me but its something that you may want to consider if unintentional. Its subtle enough that it may not register with many people. I saw it right away tho which made me laugh. And i give you a $5 for that
Forgot to mention, A possible solution to what i referred to is to eliminate the chalkboard drawing behind it of the +- battery so that it reads better and clearer. But the silhouette is the main culprit for it reading this way. Try it, imagine the character and boy in all black silhouette...you can see what i mean.