I like the corner toilet it is good size for her for now.
Remove that ladder she can get seriously injured, even if she could climb there her tiny legs will get caught in the wire and she can easily break them! Is there a door apart this roof opening?? This can only be used for cleaning and there supposed to be a door so she can go out and back to her cage easily. The ladder is completely wrong thing please remove it asap!
You don't need that shampoo! If your rabbit smells bad it is because she is not getting healthy food for 2 weeks already and she needs hay hay hay and just a small amount of pellets (without corn and cheese) and small amount of green leaves. And she will be good. Never shower her again!
You see many comments already about her food pellets. Corn is bad, if you want to finish that bag you need to pick out the cornels. Food bowl is too big for her, only give her small amount of pellets like one handful once a day. Next time buy just plain pellets without corn and cheese in them.
You only need to put litter into her toilet and leave the entire floor clear if you want to train her, otherwise she will think that the whole cage is her toilet. So just remove this bedding from her floor (put it into a bag so you can use it later adding to her toilet), and add hay on top of it in her toilet. she will eat hay and will pee/poo there. If she peed somewhere outside of her toilet wipe it with paper towel and put it under her litter in toilet box so she can smell it and she'll start using it.
Put some hay over or beside or into her toilet, she will eat hay and will use toilet same time. Some examples here.
She needs much more hay, give her fresh hay twice a day about same size as she is.