As my 15mm collection slowly becomes fully painted, I'm increasingly painting the weirder and smaller factions. These are Khurasan Meso-Nai, xenophobic salamanders in power armour.
My daughter had already posed them on blocks; she approves of their eel-like faces; as she likes to chase eels in the clear freshwater creeks near where we live.
The bigger 15mms are actually quite good; these lizards are actually ~20mm. There's quite a bit of variation in 15mm, as much as 25-32mm '28s.' I feel these and the bigger Blue Moons look quite OK, whereas the puny Rebel synths are simply too small, regardless of sculpt quality.
15mm continue to be fun and rewarding to paint; I still think they are the optimal size for platoon+ battles or anything where vehicles are the stars, but you still want infantry to be individually based and look decent. These guys would have taken an hour and a bit from start to finish.
I'm slowly switching to 28mm Mantic for my homebrew sci fi horror rules; they should paint up soon. My initial assembly observations of my Enforcers box is they are a bit weedy and lacking quality compared to my GW Tau & IG, but in Australia they are 20+ for $35 instead of GW's 10 for $70; so at $1.60ea compared to $7ea (a quarter of the price) I am inclined to be pretty forgiving.