I will take this second to emphasize that there are differences in scale between regional and city maps. You may want to browse the City maps or tutorials section here on CG to help get an idea of what you like and what you want. (Also, try to identify specifically *what* makes those maps appealing, so when you try to recreate that, you can recreate with purpose.) Usually, on forests which don't draw every single tree, that style usually has details on the edge of the forest, which show a fade in the density of the forest. These details often suggest individual trees, without detailing everything about those individual trees.
Anyways, on your forest, I think the new texture is an improvement. However, I don't think that most forests have thickly defined borders. You could try using a half opacity eraser to try and have the density of the foliage fade, as it gets closer to the edge.
Like this:
Good forest.JPG
Instead of this:
Bad Forest.JPG
On the addition of farmland, the city could receive food* from hunting in the forest, gathering from bushes, or trade (perhaps from lumber). So I don't think farming would be necessary. Furthermore, I don't see that many irrigation sources nearby. If farming were necessary, it could be a ways away, where all of the farming ground could be chopped in a less densely forested area, or closer to water. Then, the farmers could go to the city to trade for goods.
Edit: i have been having that "invalid attachment problem a bit... anyways, i re-uploaded the images to see if that helps. Also changed "forest" to 'food'