definitely more horizontal landscape than vertical images - or square images. I suppose my port has more horizontal images too though. I don't know if the sales ratio matches the portfolio ratio or not. I have quite a few more panoramic images, but they don't seem to sell as well. When I remember I try to take and upload images that are both portrait and landscape if the subject lends itself to that sort of image, but I see landscape images more than I see portrait ones.
I have limited video, and no portrait video.