I'll be honest, Ultima is a sweet mapper, but the flooring desperately needs to be changed here. As a general rule the floor shouldn't be super bright, especially when everything else is dark. It's very distracting and confusing in this screen.
Its very hard to look at, Lennon is right, that ground is too bright, eyeburn bright. Either increase overall brigtness, not the best option or lower the brightness of tiles, to get to the point, needs alot less contrast. Otherwise great mapping.