Finally back to this after the summer (and finishing up the Narcissus )
Small update, everything is now done for the build (except for inside the window).
Currently the base coat is to dark, but that'll be fix shortly.
It's very difficult to know exactly what colour the original miniature is. It's certainly a light tan, not white or grey.
So I used Tamiya XF-55 Deck Tan mixed about 2:3 with flat white as a base. Then there's a bunch with a little red/pink, some blues, and the rest are just darker and darker shades of the tan.