I really like the style and color of this. The orangish-grey-burnt thing you have going on really pops and looks maybe a little sinister even.

I have two pieces of feedback:

* I agree with Freodin that the pure white text looks out of place to me. Maybe distress it a bit, give it some texture, and/or or lower the opacity or something to make it match the vibe of the rest of the map? Or maybe just choose a different color.
* The "ink" doesn't fade at all as it reaches the tattered edges of the parchment. I feel like it would probably fade from all the wear the edges have received.

Nice work!