Regarding rivers -

What is the scale of this map (whole world)? I think some of the rivers are too twisty for this scale. Look at rivers on earth that have a similar scale in similar terrain to see how they move. Really big rivers tend not to meander that much (it all depends on the scale...if this map were, 25-50km across, I'd say you got it right). Just my opinion, doesn't count for beans

I do like the river running down the sandstone mountain valley in the SW.

-Rob A>