Too darky.
Mate, can I ask you something?
Why you're doing such complicated things instead of starting with the basic and simple things of design?
I mean, make a wallpaper with small adjustments, a template to work out some techniques, signatures and then take up on big art.
That's my honest opinion, from all the big arts you've made, there's always something that destroyes everything on it, and this means that you
need more practise.Just use basic techniques for creating something cool, not complicated ways.
For example why would you place that chair?Why would you use that texture?Why
Couldn't you just take a wallpaper of Joker and make some cool color/effects adjustments on it?
Sorry buddy, but that's my honest opinion.