Looks like you've got steeling on F1 and M1.
I would call F1 a steel because of the very reduced agouti makings, and the agouti ring pattern being pushed up to the ends of the hairshafts. Based on what I see on my screen, I'm having a hard time deciding on color. Maybe a blue steel? Although the color is a bit off for blue, and a ruby cast to the eyes is often a sable indicator, she doesn't seem to have the obvious shading on her points that you usually see in a sable or smoke pearl.
M1 looks like it could be either a sable or a sable steel. Obvious shading, and what appears to be ticking/ring pattern all at the ends of the hairs. He doesn't have agouti markings that I can see, but sometimes steels don't. However... what looks like ticking could be the "frosty" phase that sables go through. Mine do that earlier than 6 weeks but I understand there is a lot of variation in the development of steeling (and silvering, too).
I agree that F2 looks like a blue sable aka smoke pearl; the variation in hue you see on the hairshafts looks like just undercolor/surface color, not banding or ticking.
Could you post photos of the bellies of F1 and M1?
