Eh, I won't give scores, just CnC and stuff.
Okay, for this one, I like it.. although I'm not a great fan of the colours and stuff. I know you love your grunge styles and stuff, but colour and abstract is nothing to be scared of. Try this out..
New layer and take a nice abstracty brush if you have one, and brush around near the bottom of him. Don't do to much, and don't do to little. If you can't get it right, you can always adjust the opacity and shit.
Now, if you have any on, like Colour Balace, Hue/Sat, Gradient maps. Delete them, hide them.. whatever. Just take them off. They're horrid, sorry. But, try this out for size.
Add a black and white gradient map and set it to Darken, after that add another one, this time a blue to orange one. You may need to use the reverse option on one of the other gradient maps. Set that layer to soft light, and then finally add a purple to orange or w/e and set that colour dodge. And lower the opacity to around 60% (You may need to lower it on some of the others too, different sigs have a different effect with these, you can also try out some other ones if you need to)
Now do a new layer, and then do "Apply Image" just click ok on the little box that pops up. Now, go to "filter > blur > guassin (wtf cnt spel lolk) blur... set it to maybe 2.3px. Then just click okay. Set the layer to a nice lighten, if it's to bright around the face or body etc take a default brush (soft brush 65px) and erase some of it out.
Looking good eh? (I hope)
(Warning!!1111 SAVE BEFORE THIS PART) Now finally, this may be a bit hard but meh, grab a soft brush again, around 100px size and erase parts of the sides off each layer. Try and make it so it does go straight down, try and get it so its free form and wavey kinda.
There, some tips. I could of gave more but I'm hella lazy.
>.>
Okay, maybe one more. You can use this if you need to. New layer, then apply image and use a sharpen filter on it once. Erase unwanted parts.