Sanseveria is desert looking to me and would contrast nicely with some
prickly pear-like. Also Many forms of cacti do well under intense
artificial light, fluorescent arrays wouldn't work unless you want to
bring out the plants for occasions, or raise the arrays, but two gas
spot lamps tastefully (and horticulturally) placed among art
suggestive of desert plants and landscape would allow a few cacti to
be grown, while you could switch over to a yellow spot to entertain.
Sandstone facing, I like this, but you have to be kind of
martha-come-edison to pull it off. Norfolk Island pine could work with
this mind-foil.

TK