It looks bad right now, but it can very easily be fixed to look fantastic by outlining the main letters in yellow or white. The reason it looks so "busy" is that the contrast between the fronts and sides of the letters is all over the place and breaks up the shapes' edges; if your graphics guy marks them off cleanly with outlines, the problem will be fixed, and you'll have an awesome summer banner. There's still time to have it up this year!
I passed this onto Mark, and sure enough he was able to do his magic to make a bright cheery new summer banner!

Hopefully you'll be lucky enough to see this appear at the top of your screen from time to time.