As yet unnamed Continent: Rivers

[Jallorn]

So, I'm making this map, (shocker, I know) and I'm at the stage where I want to figure out where my rivers go, how much of them I want to show, and how I want to render them. So far I've gotten a basic landmass and some mountains that I'm... mostly happy with, but I'm looking for opinions about the rivers because I so often come back to a map I previously did and think, "I don't like what I did with those rivers, it doesn't look realistic to me anymore," or similar thoughts. This won't stop that, I'm sure, but it will at least let me move on to the next step anyway.

So, the map is approximately the size of Europe, from Iberia to around Poland for scaling. The included images are a copy of the map without rivers, a sort-of topographical map (the topography is purely generated from the mountains, rather than being derived from the meeting place of mountains and ocean as would probably be better) as well as both maps with rivers on them, as a simple black line plan on the topography map, and as a basic render on the normal map.