Any critiques?

[Springheel]

I think it's an improvement. Are the floor bricks really that green or did you modify them somehow? They definitely stand out.

[Dantra]

It's the wet variation of the texture. Leaking pipes above.

[Fidcal]

That vaulted ceiling is looking good. Not sure about the white stone decorative feature half way down. My instinct is stay with the same stone and make it thicker vertically. But that is my gut feeling and I'm no expert on gothic.

 

The other arches looking good. May I suggest you rotate the texture 90 degrees in the tunnel. I think it will look more 'correct' so the continuous course lines run down the tunnel. You may have to re-align the front texture but once done you should find the stones are symmetrical about the arch because they will be along the regular course of bricks. In fact maybe start with that front piece, rotate it 90 then make sure its top stone is dead centre (though I don't know how that might affect the alignment of the bottom stones.) Then rotate and align the stone in the tunnel.

[STiFU]

Oh boy, you really got a knack for patches! Very nice work on those Arches. But there is still one thing that could be done better in my oppinion. The pad of brighter stone seperating the arches from the columns could be a bit more massive. Currently it looks a bit like it could break of any minute. So make it maybe three times as thick and perhaps also make the caps threesided. That would look better in my oppinion.