Pretty. The increased contrast helps, though I personally liked the almost-monochromatic you had at first. (No accounting for tastes, I guess).

Which story? One or two people here read and might be able to spot something you've missed in your source.

For the rest, me, I'm bothered by the rivers that appear to flow uphill. If I drew coarse contour lines based on what I'm seeing, I see two primary ridgelines. One is the hard crest at the right edge of the map. The other flows through the three center hills. Yet you've got two sets of water - the south definite, the north probably - crossing the saddle from west to east.

Interestingly you broke that problem for your river to exit to the southeast 'delta'. You've got a clear ridge connecting the center to the right, but you broke it with a canyon.

the delta, by the way, bothers me because alluvial deposits don't usually look like rocky ridges. Rounded hills, maybe. But at least it's a nominal triangle breaking out to the sea.