I think what most of us non-image editing folk don't realize is that the pictures the game uses have pieces of each room on them. So when one person modifies one room, they are actually modifying pieces of that room on more than one image file. On those same images are pieces of the surrounding rooms as well. (Note the attached image piece above has two parts of the master bedroom missing, but also contains parts of the kids room, master bedroom, living room, bathroom and kitchen.)
Our "modders" have been WONDERFUL about working together and sharing their work so that we can pick and choose a room from one and a different room from another, but it's a lot of work to change each map piece for each room that a person requests. Lyssaria is providing the images with each room separately and with both rooms together, so we can pick and choose.
The plants and bathroom you have seen were done by other artists and wouldn't contain Lyssaria's mods. There will probably be a few merges posted soon, but the truth of the matter is if you want to pick and choose from a variety of different things, it's probably best if you try to do them yourself. It's a whole different world once you start and is nearly as addictive as the game itself. hehe
Edit:
This post actually shows how the images are put together to make the game map that we see.