Thanks for the help with the images, in the past I've tried that but when I pressed preview nothing showed up, must have to actually post for it to show

As for the graphical issues, I can't remember them all but I'll make sure to screenshot them if I do. The main one is in the sewers(might be named something else, I'm bad with names) with the water. The in corners don't seem to have tiles so it is just two tiles overlapping that look weird. And It also seems you are missing a tile for the out-corners.

That's all I can remember for now, but there is one other thing id like to report. In the following image you cant walk across simple plants like weeds and Lilly pads, I find that a bit strange.

Id also like to agree with Diarander in that a map would be super helpful. I don't think you have to make a perfect replica, in fact I feel like something that looks handmade would go more along with the story.
EDIT: Can you guys see the images, because I can't
EDIT2: Thanks for your help with the images, I feel so accomplished right now.