I really like the style of this! It's clear and easily readable, but still detailed enough that the map doesn't look bland or boring. The whole layout looks nicely balanced.
And I have no problem whatsoever with the colouring. It is a bit out there, yes, but the palette is harmonious and very pleasing to the eye.

If I had to nitpick on something, I'd say the labels on the mountain ranges could maybe have used a tad wider stroke around them.

Nice work on this. Definitely one for the inspiration folder.