syzygy

A question for anyone applying to Columbia but when they specify for the images to be 1280 x 1024 pixels, do they mean that they have to be horizontal or can they be 1024 x 1280 too? I emailed them a while ago but they ignored me.

This is probably a dumb question but when they say 20 stills in th portfolio, do they need to be 20 individual works because quite a few of my works involve multiple interactions between viewers, the piece and the context which the work is being shown? I can't really express that all in a single still. Also, is it a good idea to include sketches and drafts for your pieces (like christo and jeanne claude's drawing for their pieces)?