Well, I AM a geologist, and I can tell you that you have done an excellent job. The mountains are in one long range as they should be. The rivers run from high ground to the sea, as they should. They join correctly and wind about nicely, very natural. The color scheme is a very pretty one, very popular. Your labels and titles are slightly inconsistent, but nicely placed and readable. Your coastline is a very natural fractal-looking shape.
I'd give this map an A-. When you learn to draw mountains, you'll be awesome!
Have some rep!!