The excitement is just too damn high :D I think I get the sort of approach taken, they are anthropodic in design, rather than a mech, it's just like an armored extension of the human body. A reinforcement, I guess- this is what I'll go with for my Scout character I reckon. It is a different shade to the one posted earlier, but I think it's more badass. I would agree that keeping it a little leaned back, as what was seen in the concepts is a good idea- after all, in survival, you'd think that the most practical design would prevail, and they all seem to share commonly the image of being things that would be left after a shuttle crashed on a planet, as the only protectors of anyone lucky enough to be inside. Plus since I assume there isn't any combat immediately, charting the new world they land on, as well as defending what little they have left, is going to play a big role. 

http://img2.wikia.nocookie.net/__cb20120314172431/redfaction/images/4/49/Rf-exoskeleton.jpg

Going to be a good RP, I feel. The atmosphere of this planet I assume would be breathable, based on your suggestion of it being Earth-like. So no need for O2 and the terrain looking like the surface of Mars, or anything.