your choice of color combo doesn't make much sense when compared to your background, I would use something like
Combo1: 172.0.0 Combo2: 57,83,116 Combo3: 141,154,166
yep looks way better now
Your background is of very average quality.
you can use images up to 2560 x 1440 <2.5MB
I think you can find a better one
done