Loving the effects on this one. You've done well with what you've done to the render, it really blends in well with that bg, maybe a little too well - might want to focus on defining the render a bit more. Throw in a few adjustment layers (like levels and curves) to improve the contrast, that should help the render a good bit. I can't say I'm a big fan of the border, it's just a bit too strong for my liking. Maybe try a low opacity "widescreen style" border, could look pretty good with this type of sig. Try to add a little more depth to the piece as well, just give the bg a little bit of a blur and sharpen the focal and you should be good to go.
The text is amazing. The positioning is perfect imo, one of the few cases I've seen where text actually adds to the sig rather than takes away from it. Good choice on the colours for it, the combination of the red and white is rather unique in that I've never seen it done before (yeah, I'm surprised at that as well) The font choice is great as well, the spacing and size fits in great with the action around it. Mind sharing what the name of the font is? I reckon I'll be borrowing it for a few projects myself in a bit.
All in all this is an almost perfect sig. Just a few small things which can easily be fixed hold it back. I'll definitely be referring back to this (gonna save it somewhere safe) and using it as inspiration for some upcoming pieces.
On a final note: Just to new comers who aren't too familiar with sigs and stuff. Open the spoilers and read what wounded says in them. Some of the best advice to give people who are just starting out