Design einer Werbeanzeige

You have to upload 640x640, 640x427 and a 640x413 as well as another pic in 460x285 The point is that the graphic has to pop up perfectly size wise and pixels, because even if I had the right size in jpeg like it was required it still had pixel problems. You have to optimize this problem and upload the right size with right pixel quality. We will have a couple of other jobs as well like this. Logo exists already in psd and vector, thanks.