Mmmmh, I think you have too many high-mid/mid class houses. I'd remove the high-mid, and do only 1/3 of houses in the total.
Hence, for approximately 25 houses:
- 9-10 low
- 8-9 low-mid
- 6-7 mid
Keep in mind that, as far as I can see, the lands aren't providing this town lot of wealth, so don't...