Hi asanka, welcome to PSG. Overall, pretty good work.
I like how you made a throne of the graveyard pieces. Very creative. The blood spatters, and whatnot on the shirt, and the eye work well ... eww, lol. The flames, the wraith, the skull, very cool. Excellent selection of the model (except around the shirt).
Some things that need work. First of all, I think the lions are too neon for the composition. They are also roughly colored and their eyes are too much like plastic beads pasted on, so those should be blended better, maybe even blurred slightly. If you look at the colorization around the fingers and a couple other places, you can see where it is not finished out, so that should be fixed. The shirt has some rough edges and loses all the soft drape that fabric has. It happens on the sides and for some reason at the hemline, the coloring is not like the original and is also rough edged. Compare it to the original. Some shadows, mainly around the selection need to be replaced. The feet especially look like they're floating on the ground. So look at that.
I looked pretty carefully at your manipulation because it was serious work on your part, I like it, and it is well worth it for you to fix what doesn't quite work and make it excellent.