Derby is way too small. So are some other territories. Click on 'example army numbers' and you'll see what I mean. Check out the 'tiny territories' section here for more info on how to deal with the problem: https://www.warzone.com/wiki/Map_requirements
Also, most bonuses are too big for typical games. That often leads to situations where the first player fortunate enough to complete a bonus wins the game because of the big early-game advantage they get. You may want to consider breaking up the bonuses that have over ten territories, at the very least.
I haven't checked the connections, but the map looks otherwise fine.