The rest is pretty good for ms paint. but the face... you need to add some shape to it, it looks like he doesn't have a chim, and add some shading on his body, without it, he looks rather flat.
the flags are pretty good, but from how large the wall looks, they should be a little larger then that. Unless they'er painted onto the wall.... it's hard to tell from the way you have the shading on the wall...
Keep it up, you have a very unique style.
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