Wow dude! AMAZING job on the art with this one. I have been collecting all the old Spawn comics and reading them, getting the full story of him and it's rather tragic, if you don't know it.
Getting back on topic here, the only things I notice that could use some work are:
1. The letters are a BIT difficult to read, not terribly bad, but could be clearer. Even though, I DO like the effect of the scratchiness, so either way is okay with me lol.
2. This is kinda nit-picking, but Spawn has green eyes, not yellow/orange-ish. I know that would throw off the general color scheme of the drawing, so maybe it's a good thing you left them the color they are now.
Great job and you just got yourself a new watcher!!