Who are these Eldar dudes?

Nick speaking,

I found these two cool looking Eldar dudes lurking at the back of a shelf at my local hobby store the other day. I just had to buy them up as they were only a pound each, but I actually have no idea what models they are? Can anyone out there shed any light on what they are for me please? They seem to be holding heavy weapons of some sort...

I also found an old weapons platform on the same shelf, and as I plan on experimenting with Support Weapons now that 6th edition has come out, I thought these two dudes with the platform would work well as a proxy until I get the real thing. I know the platform is a bit small, but it will do for a while whilst I try them out...