Some of the buildings I'm looking at adding include Community Center, a bath house, an auction house, place to train like ponygirls etc, modeling agency and an item factory. Figure more then that but that's a good start see how people like them then go about adding more if people enjoy them. Some of those may get cut or changed but that's kinda the plan right now.
Looking at adding some more jobs to the arena... Think monster hunter job fits? Thinking something along the lines of someone hires your girl to go hunt a monster. Give you a chance at getting a unique girl from the catacombs with it. Thoughts anyone?
Aika may want to add somethings also.
Ponygirls are to difficult to back with decent per girl pics, bathhouse = onsen, no need for a normal bathhouse, think about adding a shop that sells items that factory makes. You can move beast hunting to the Arena, that would make sense.
That's a load of work, especially in C++. Maybe you should learn Python as well and code a new game

I can't seem to figure out how to draw a decent citywall

Back to learning how to make maps...