Oh, did not know about it, thanks for the link! Steepshot and SteemPhotos right now really have many similarities but it is only right now. These projects have difference ways — Steepshot focuses on lifestyle and feed while SteemPhotos will focus on high-quality photos and discovery of them (yeah, right now it also uses feed but in the future, the search will be one of centric parts).

For example, I have plans to analyze all published photos on Steemit and detect what objects they have, in the future it will allow creating a powerful search system, e.g. you can search "sea" and find all posts which have the sea on the photos.