Looks pretty good. Nice blending and such. Are you tracking the two ads via channels? If so keep and eye on them and maybe try some other placements. Find what works best for the site.
I had completely blended ads and read Joel's Book who said do the 336 ads and keep them 0000ff.... I am scared to try this, but, hey, what the heck... Has anybody else had success with this
the large and medium rectangles are by far the best converting. Next in line would be the large banners (728x90)
I am sure you could gave gotten this advice right on this forum without having to spend the big dollars making Joel Comm even richer. lol