I'm sorry this hasnt been commented. the void is usually better.

Overall this is a hard render to use but i think you did a decent job.

The BG is okay, and the composition is great. GJ on that.
Text needs work i dislike the placement size and style of font. Coloring is good though. Try a more primitive font. Something kind of basic would be nice, like arial.

The render could use a bit of blendign but thats tough to do with his sheild.
Overall nto bad, but a bit plain.