I'm not a fan of the border at all :/ Its a big black line :O
And the colors seem to contrast eachoher a little too much, Green and yellow can be a deadly combination if not executed correctly.
The C4d render looks good, but you went a little too crazy on the smudge tool on the left side. Its really looks like a start to an amazing sig, I wish it didnt have that empty feeling.

Keep workin, I'd love to see you make a beastly smudge sig

EDIT: I LOVE the fallen night text. extremely good job with that