I went to the costume drawing panel at Wondercon and got a seat up front so I could see. For the first half of the session, the model stood on the far right of the stage with her whole lower half hidden behind a table. lol Later, she moved out from there and I got a couple of drawings in.
It wasn't a total loss. The moderator drew a few things, gave us some tips, then one of the artists from the Art of Mulan book, Alex Nino, did a few drawings to demo.