Hi, Dee Dee - and thanks! The lighting on #2 was two remote-fired off-camera SB flash units, one to camera-left for the light-sucking black dog, and one high and right for the fellow. For mood, I gelled them both with CTO and set the camera to match, letting the surrounding areas retain a blue cast.
Ohhhhhh the Tenba bag...well, let's just say that breeding studs, when en masse and unattended, mistake camera bags for...I can't even type it. And I didn't clean it. Just got a new one.
Love your horse work! Had a mixed day with some on Friday, finding that they're even harder to get to sit still and pose than a pup!