Good start in CC3. Some crits for you tho.
Bring your label layer to the top. The roads are obscuring some of your place names.
With your fractal rivers try to click more regularly so that you don't get those hard right angles.
Maybe tone down the outer glow on the waterways (you can have too much of a good thing)
Careful when curving your text. You have som overlapping letters.
A glow around your landmasses would add depth to your seas.