Want to improve my portfolio

Rektum

Hey guys. I feel like I've hit a ceiling with my work. I want to push it to the next level but I'm having trouble finding where I need the most improvement. Can you check out my Artstation portfolio and give some feedback?

Here are some samples:

Ashervisalis

Hey Rob, your portfolio looks pretty cool Here's some critiques I've got.

1) I'd get rid of the irregular stone wall from your portfolio. It needs quite a bit of work. The grout is pretty flat and dull and the stones should be larger/closer together.
2) Bathroom tiles look nice, but you should really condense your material to 1 image. Having 4 renders of the same material, with 2 of the renders having multiple cubes, is really overkill. You should be able to find a way to present your material in a single image.
3) Cloth art looks awesome, but you could definitely combine the images so you only have 2 pictures.

Aside from those critiques, cool work!