I'm a sucker for that color scheme/look; I love the aged parchment feel on just about any map, and StarRaven's (I think) brushes always look good. I like that landmass shape too.
Nitpicks small: The font you're using for the cities/towns is hard to read, at least for these two-score-year old eyes!
Nitpicks large: Your rivers are doing some funky and, well, impossible things. You've got multiple outlets for several lakes (unless some of those are borders - hard to tell).
All in all, a great start, though. Looking forward to seeing what else you do with it.