I shoot with Nikon D3s/x. (In the past, I did shoot with a Canon 1Ds II/III, but switched back to Nikon in 09)
Also shoot with an Alpa/47/Aptus combo. Sometimes I shoot with an H series Hassy.
Glad you like the images. The R44 is a fine ship in the right hands, It is a good helicopter for many aerial situations - the key, as always, is the pilot and their experience with aerials.
The ship I prefer is a Hughes/MD 500 or an A-Star/TwinStar. I've flown in 34 different types of helicopters over the years, so I can give an opinion of most of them, but it really boils down to the pilot and their ability to fly safely and in control.