I LOVE the title design itself, but I agree mostly with blackcat, with the skeleton being overtaken by the blood/smoke. The soul/wispy looking thing is cool though, matches the Reaper vibe well, so I'd keep that in. I think you just need to practice rendering the red stuff a bit, maybe brighten a few areas, and fade out some of it around the skeleton's face so it's more clear.
I don't know if the mask is important, but if it isn't, you could take it out and center the figure a little more?
That's just my opinion. I'm about to redo my cover myself, so take my advice with a grain of salt.
Best of luck!