Hmm I do like those walls, I can't tell if they are smoothed or engraved though. I'm guessing that small outline may be the only thing that would change when engraved but I'm not sure and even if that was so it'd be what I'd expect/ would think looks nice.
Idk if I could get use to those floors though they stand out but I much prefer floors that mash together and look like they fit together the ones you are using are acting like separate entities in my mind. I'll never like that stone flooring but it's not what I like that matters. 
I think it'd look nicer if you used a background for those objects that you have no backgrounds for the chests and rocks anyways because that pure black background on all those objects is quite dastardly.
But that's from a guy who doesn't play with text based graphics like you are currently using (the dwarves and creatures). I did like the grass though.
The issue with the doors can be fixed by just lowering the top of the door a little it's not to big of a deal and may not be that noticeable ingame but when you notice it, you can't unsee it.
Sorry, that i didnt repond to your post in my last update. I was in a rush before going to work, i was kinda late.
These walls are not engraved now, i just hope theres a way with TWBT to make graphics for walls engraved separately. If not then idk what i would do =/.
Ya, i do try a lot of design for floor until i find something that looks good. I was sastified for now but something was wrong with them but i couldnt point out what. With your post, i realised whats wrong with them, and you're totally right. Came back with the other floor for now. Most of the items right now, use the ASCII from Bisanam, i plan on doing them. I dont like it either when there black background behind them.
Ya, would try that with the door, i did mess around with it but it always look out of place.
Ohh, the leaves and grass look pretty good now.
Thank you!
The new shrubs and rocks look cool, only problem is they look like they are taken from a another game and that could cause problems.
Hum, dont know what you mean. Do they look out of place or do you claim i stole these graphic from another game? I didnt stole anything from another game. I do follow some pixel art tutorial on the net, and use some graphic as example. My result look always worse then the original, unfortunatly. If you want, i can show you on what i based the bush and rocks on. You would see that the original looks way better then what i did.