I finished off the major geographical features and as per a suggestion in my current finished map thread, I sought out an image of old parchment to overlay on top of the map to make it look a bit better.
I think the look is really coming together, but there's one more element I'm considering which I'd really like opinions on, namely country borders. In several of the real world maps I referenced in the above post, there are vague colored outlines along political borders, and I'm debating if I want to try to recreate this effect. I've already tried several times, but to no avail-each effort just looks unnatural and stands out like a sore thumb. Any suggestions on how to do this? I would also appreciate any and all suggestions, comments, and criticisms.