Here are two shots, both with a 5D III and Sigma 35 1.4 DG HSM combo. Both shot in Nuuk, Greenland, where I live.
The shot of the girl is done walking backwards with a 600EX-RT in an Apollo Orb and triggered with the ST-E3-RT. I did multiple shots in the same walking sequence, and I picked this one which I liked the best. A friend of mine was carrying the Apollo to camera left, and the speedlite was in high speed sync mode and dialed down to -2 EV. Exif is 35mm, 1/2500 sec, f/1.4, ISO 125.
For the group shot I used two Bowens Gemini 500r triggered wirelessly, each mounted with a Westcott Rapid Box XXL on c-stands and shot a wee bit above the group to my right and left. Exif is 35mm, 1/160, f/1.4, ISO 50 and with a 0.9ND IR Tiffen filter on the lens. Ambient light was underexposed by -0.7EV. Focused manually on a tripod (the lens-camera combo reeeally struggles with nailing autofocus with this type of filter, even in good light, much to my (mild) frustration, since other combos have no issues at all).
Lovely shots in this thread. I hope to see more good stuff