I must say, this is top quality work. Not only are your interpretations of the Star Control universe inspired and impressive, but you are actually improving upon the concepts in the first two games. Your character designs and ship drawings add an incredible amount of depth to the original designs, yet at the same time each new creation stays true to the very nature of each race and it's technology.
The reinvisioned Syreen Penetrator, Supox Blade, Mycon Podship, Mmrnmhrm X-Form, and Kohr-Ah Marauder are actually better than the original designs IMO. The Penetrator in particular is very funny looking, no doubt just the phallic style that you were hoping to achieve

The interpretations of the species Utwig, Mycon, and Spathi are first rate. The Utwig in particular is being given a much needed workover by your talents. They were one race I always felt suffered from a lack of development. Of all the races from Star Control II, I can see the Orz benefiting most from your style of artwork. They always possessed an aura of mystery and danger that I think the original artwork failed to promote. I also like the direction you're going with the rough sketches of the Orz armored battlesuits.
By far my favorite creation of yours is the Precursor race. You've taken the silly sounding concept of "hairy giants" and legitimized it with a very striking picture of the actual being. This new artwork of yours really grants the Precursors an imposing visage, befitting the prowess and might of this oldest of speices. I am also fond of the "Derelict" ship. It reminds me very much of the old 1970's era of science fiction artwork; like fine art you'd see of the covers of many a science fiction novel from that era.
I guess it might just be that your personal style of art merges so well with the original palette and flavor of the classic Star Control games.
About the only criticism I can even think of is the early concept work on some of the ship designs. In particular, the Ur-Quan Kzer-Za Dreanaught, the Orz Nemesis, and Crabs vessels are...over designed. I like detail as much as the next person, especially in drawn art and animation (which makes up a large part of the classic Star Control games). However, I think some of the original ship designs look good as "single-piece" or "smooth" designs, which don't necessarily benefit from the addition of numerous protrustions, blisters, and grooves which is indicative of much of your work seen elsewhere on the site.
I'm bookmarking your website and eagerly awaiting updates. I can't wait to see more.