That's a nice bathroom
The floor is a little bit wet (no pun intended) maybe reduce the reflective ammount. You could use glossy materials with 0.1 reflective for the wood drawers they look like yummy chocolate to me
The more glossy materials the better it would look, try glossy material with 0 in reflective ammount and 250 roughness for the walls... That's what I use in Azuma house it look more realistic.
Except if its very rough walls and you want that effect
Ill raise the camera ISO a little bit also (+50 or +100) and maybe the gamma from 1 to 1.25 or even 1.5 depending on the camera reponse you are using
For example "Ektachrome 64TCD" doesn't look good with a gamma of 1 because everything is over-contrasted. But if you raise the gamma to 1.5 its very nice. I used it in the Azuma house also.
Also don't put too much vignetting, architecture photohgraphers try to avoid and correct the vignette effect a lot
Oh and try to get less "orange" whites, its not a big problem if you look only this render. But in a gallery of renders it would look very orange
Your render is very nice, keep doing more renders of that scene its a good scene for sure
MLT gonna improve noise when you have specular materials I think
But it could also help for interiors when its only lit by bounces im not sure
nice renders love the architect one and the sharpness of the scalpels
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