Custom Skin- Saber Riven from Fate/Zero

I was wondering if anyone was well versed enough with custom skin making to change the loading screen splash and HUD Portraits from the Mediocre current ones to parts of this better splash.

The Current Skin: http://leaguecraft.com/skins/41463-saber-riven-fixed-with-particles.xhtml

Many Thanks in Advance (Hopefully)