falconking, please don't take this the wrong way, I know you like doing 3D and that is great. What I want to say is: you're always in a hurry
You want to turn out 4-5 images a week, but the quality is suffering because you don't put the time in to look at the details. Instead of making 10 so-so images, try to concentrate on making 1 great one!
For example, Oscar said for now using mxi textures will make noisy renders, so for this pic especially there is little reason to use an mxi emitter. just use regular emitters. Also since we are using ldr images converted to mxi, the benefit of hdr is lost anyway. Better to wait until we can convert directly hdr->mxi.
Bump on the door is too strong and there should be some glossy reflections there, both on the door and doorframe.
Bathtub edge is much too sharp, needs beveling.
Bathtub material looks too reflective, and also needs a bit more gloss, but maybe it's just the viewing angle.
Add more detail, take your time modeling them, there's no "robinet" for example
Light coming from outside is much too bright, like you're taking a bath using theatre lights.
Your images have potential but you're too much in a hurry...
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