I like the layout of the page. Is there to be a picture at the top of every chapter? Or are there to be even more pictures?
Perhaps the lines at the very top and the bottom of the page (above the page number) might be left out? I'm not sure if the effect of the lines is more like giving it a frame work (positive) or "boxing it in" (negative), but that, I think would be a matter of testing.
Perhaps, instead of the line above the page number there could be some kind of "ornament" around the picture, e.g. some kind of plant structure fitting to the picture above. I think I saw something like that somewhere (my issue of Michael Ende's "Neverending story" I think), but whether this would look good or overdo it is something for you to decide (I'm not sure if it would be a good idea, it is just a spontaneous thought).