Watching game #1, you're calling produce way too much against an opponent with much better production than you, and not trading nearly enough. As Alpha Centauri in 2P (non-advanced), I can't imagine doing anything other than trading first unless you have an awesome card you must immediately play (which you didn't). In the end, I think your cards synergized better and you should have won, but you treaded water too much early on instead of pushing your advantage by calling unnecessary Produces and Explores to help him make use of his start world and build a Produce/Consume tableau.
(Very amateur analysis here, sorry if this is not too helpful!)