I like the concept, so I decided to create a mock-up design for the alien evolution GUI.
http://i.imgur.com/WLKeq.jpg
Concept: Bars of glow (from Granger to Basilisk) indicate stage of evolution you currently are in, to neglect the selection of devolving. Evolution which cannot but obtained yet due to stage requirement or lack of evolution points have black and white portrait and model. Center display of selected alien has same effect as portrait, and displays message of "requires stage 3" or "not enough evolution points"; also the model will be an actual dynamic model, either rotating slowly, or in idle animation (bobbing up and down etc.), or even both. Everything besides tyrant, goon, and dretch are place holders; the advanced goon portrait is a concept, indicating advanced evolution (+), but I'd like to replace it with an actual advanced goon portrait, preferably with a different more "epic" pose, the + sign may stay even with changes to indicate advanced version. I think that's about it.
Comments and criticism would be great.