Your co-worker is awesome for giving those to you, and you are awesome for blooming them! I am generally sure of the first one on the left- looks like a doritis pulcherrima ,hybrid that probably is a cultivar called 'popcorn', and the last one is a cattleya hybrid- a very nice one! What do you guys think about the pink one- neofineta hybrid?
I have no clue about the blue one but it is drop dead gorgeous! I don't recall seing a more blue orchid before!