None of these are HDR as it happens, they're all single exposures. I'd love to use external lighting more, unfortunately I no longer have the kit as I have a new job and so I'm tied at the moment doing midweek 9-5 shoots; something I'm hoping to change (both the London and Humber locations were ones I'd scouted for night shoots). In fact, the McMerc SLR and woodland Defender shots are taken on a Nikon D5200 and kit lens!