I think these are awesome (iv said so on tmp as well). Tell me as i am uninitiated with painting 15mm. I've painted 6mm which is my favourite scale (easy to paint cause they are so small) and I've painted 28mm (harder in my opinion cause of the level of detail needed). What's it like painting 15mm - id imagine its harder cause they still have lots of detail but not the size?
I'm pretty new to 15mm Sci-fi too, but I have painted some 15mm stuff before. I think it's as hard as you want it to be. If you're a get-em-on-the-table type of painter/player, then a quick two-color job with maybe a dip/wash at the end is all that's needed. Me, I really enjoy painting, and what I struggle against is that the 15mm stuff suffers from not having enough detail! It will look like it should have the detail, but the maybe the mold messed up or something. Although the new stuff coming from Khurasan, GZG, Rebel minis et al is very clean and very nice.
I tend to take a long time to paint my armies, but I figure I only want to paint them once, so why not do as good a job as I can.
For examples of my painted 15mm British and Zulu, see:
http://www.flickr.com/photos/kelroy/sets/72157611688559338/I don't have painted 15mm SF yet on my blog, but it will be coming soon:
http://orbitalbarrage.blogspot.com/