Sorry - can't be very brutal - it's got a lot of good going on. I'm with Midgardsormr on the contrast, and on the lake. I'd believe both your lakes if they had outlets, actually. Unless it's a particularly dry area, all your rivers would benefit from some more length. What's there is OK, they just look kind of stubby. I don't use PS so I have no suggestions how, but depicting a more extensive river network would be pretty effective if you tapered the additional upstream bits.

Midgardsormr's forest tips are probably apt, but simpler than that, would it work to use the present green as forest, and shift to a more beige/tan surface for bare land and desert?

I wouldn't cross the coast with a label unless it was unavoidable (Plahnslen, Crossarrok).

You've got some good stuff going on here - keep it up. Oh, and a dollop of rep for a map in the first post - bravo!