Hello!

Personally, I don't like this menu design.
In my opinion it is too unstructured and seems to be without a clear line. Just some random shapes floating around. They doesn't seem to relate to any aspect of the game itself (I might be wrong here, though).
There is much information visible at the same time (especially in the first screenshot). It is hard to distinguish all the information/elements from each other visually, because of the alpha transparency, the unaligned menu items/captions and so on.


AFAIK you can't. The image width is limited to 400px by the forums stylesheet.
As an alternative you could post thumbnails and link them with the original screenshots.