Your signature is simple and quickly made. I see that it serves its purpose and its contained in a neat little area. For this, I give it a 10/10 but the problem is that it is not visually appealing too much. I do like the manual cracks you have in "Rock Gym". 7/10.
Overall, 8ish/10
edit: beaten.
Its a banner, a very sexpealing banner ;D
The white text kinda goes off the end of the banner and im fussy with stuff like that. I like the saturation and color filter :D
The text at the bottom also kinda ruins it (sorry). I'm not too fond of too much punctuation when its not needed and also words like OMG, WTF, LOL, XD, etc. in signatures. Also dont like how its a normal link color :( Maybe in your skin it works, but I doubt it will work in skins where it changes color when hovering over it (hyperlink). Blue doesnt work well either :(
7/10