I am Chinese, but I would say this room is not really accurate of Chinese, it is more like Japanese, those art are Chinese theme, but we don’t really have tatami on the ground, but other than that, the room looks quite good!
To be honest it looks more Japanese than Chinese. Both traditional Chinese and Japanese architectural styles look very similar, but I think it is the paintings on the wall that give it a Japanese style “feel”.
I think you should get rid of the painting on the door of the building, probably isn’t too smart to leave a painting on a wood and paper door.
I would say you can keep the painting, but just one big painting, also try to use some red colour, maybe some wooden table and some red Chinese lantern, also the door pattern is Japanese instead of Chinese, check out the door and window patterns of Chinese.