The c4d's or whatever you used shouldn't be visible above the black border, the border should be your very last layer. ><;
The colour looks odd, and it also looks under contrasted.
You should try to avoid distracting from your focal, the c4d's are taking away from the piece.
Depth seems to be the only thing going for this, and it could use a lot of work still...

Keep it up, keep practicing. ^^