i agree with alot of what karbn says. you are improving no doubt. i love the creativity with the weapons. they are made cleanly, i havent seen how heavy they are but you did well conserving objects and joints to make many weapons.
the colors look nice but need variation rather than vividness. dark colors will server you well but only if you learn to use many shades in many places, for example how you did the railing. its hard to notice since it isnt all over the bridge but it really helps the shading. i think it could do well to wash some colors out here, especially on the table. keep the same brightness or darker and make the difference between the colors smaller.
i think things look a little blocky as well but im not sure how you would avoid that with this mod (other than using rotations) so thats fine.