I’ve just read four of the most interesting reviews written about the Sentients of Orion. If you’ve enjoyed the series then I encourage you to check them out.
Detailed, lucid, and thoughtful.
Chaos Space
US Covers for Sentients of Orion: Chaos Space
And here is book 2, Chaos Space. As the series follows several character threads, so the covers reflect that.
Sentients of Orion 