Okay, thanks for all the help, guys. Immensely detailed explanations are always good.

From a River Police standpoint it looks accurate in a technical sense. From an aesthetics standpoint it looks awfully straight. What I would do is to take what Wilbur gives me and use that as a reference point and draw my own by hand. That way I can insure that there is plenty of meander and less parallel rivers. Depending on scale, when you go to apply a river basin you might be overwhelmed with darker green basins and not enough color variation for plains or other things.
That was my plan, I just wondered how well I could trust Wilbur as a reference.

Again, thanks to Su_Liam, Waldronate, and Ascension for the help. Now I've got to figure out climates. After that, I'll try and churn out an actual map of this continent.