Ooh ooh can I be really girly?
Pandalet, the top left is green and black one, the bottom left is a red one. Top right is a white and yellow one and the bottom right is orange and grey!
Actually the bottom right one, is exactly the same colours as my Triumph Bonneville; they called the scheme Lucifer and Silver! Still orange and grey!!
I have to admit, I'm not good at identifying helicopters either especially from odd angles or where there's no indication of scale. I think the red one is a Long Ranger and the Lucifer/Silver is an A109. Might stick my neck out and suggest that the white/yellow one is a BK117?
Cheers
Whirls