Good:
Choice of color and font for the nav bar
Logo

Bad:
Background - I agree that the stripes could be headache inducing. Try thicker stripes and more faded.
Choice of both color and font for the menu bar - try something other than Stencil.
Header - Everything else was done in a green, a blue header w/o any green hints looks out of place.
Icons in the menu bar - If you want to keep them, make them smaller and more cleanly spaced.

You've got the good start of an idea here. I'd like to see what you end up doing with it.

=)