So, I haven't abandoned this project, I've just been very busy with work and trying to have a life outside of work. I took some time to re-render the mountains and am much happier with them. I also managed to put together a hill brush set. I'm still not very happy with the look of the forests though and will have to rethink the generation process for those. For the time being, however, here is a preview of the new look for the mountains and a sampling of the hills. I also re-worked the overall size of the map to better fit the scaling I am looking for.
When nothing is going right and you can't find someone else to blame, start beating your head against the wall, 'cause it'll feel so much better when you stop.