well first, in overall is not That bad, but some tips:
*create urself a scorebar, thats not That hard, its gonna look better and fit more ur skin..
*add some effet to the score numbers, make them match ur overall skin...
*dont resize tha Back and Skip buttons, they dont look so good...
* I would change the spinner metre for something else or add less glow, everything in the spinner has that white glow so its kinda all in one o.o
*Avoid to use blurr+glow on pics xD
*Avoid to re-size any pics, small resizes are okish, but not that much.
Think thats pretty much all i've to say for now o.o
you dont need to change the stuff i mentioned if you dont want to, just something I really really ask, dont Resize pics, it looks fugly and poorly made D: never re-size a pic if is not a vector.
Cool....