I'm quite impressed it really seems to be coming along
See my detailed comments in yellow/red
I think you really need to develop up the structure in a big way. Make it beautiful not just utilitarian
Surfaces and patterning of facades, floors walls ceiling need work
Resolve tricky tight spaces,
Some lovely spaces getting there.
The contextual connection to THIS site and the CATHEDRAL is really missing in a big way. This would be the biggest thing to work on especially as it is core to the studio! Lots to still do in this respect. Go back to the site again.