First post includes a map - *ding ding ding* auto-banishment of the blue pip of shame!
You seem to have a pretty good idea of what you need to correct/fix/improve.
I'd also suggest trying to vary the mountain 'icons' a bit, you seem to have used the same one over and over. Though I'm not a CC user I think there is probably a way to blend the transitions from one terrain type to another, they seem kind of 'drastic'.
There are plenty of talented and experienced CC users here who'll be better able to give you ideas than I can.
Keep up the good work.