atpollard covered most of what I'd say, particularly the poor contrast, texture, and rivers. I'll add that you seem to have some issues with symbol scale. With "drawn" symbols like this, scaling them differently to get the size you want messes up the look. Some of your symbols have much thicker lines and less detail than some of the others. You also get different resampling artifacts which makes those artifacts more noticeable. The scaled up hill symbols north of the bay in the west for instance look noticeably blurry. You also have inconsistent shading of hills and mountains; sometimes the light seems to come from the east, sometimes from the west.