Heath-spotted orchid?

I've been working in London all day and had no opportunity to photograph anything of interest. Had an interesting email from Blipfoto wanting to use one my images (13 February) in an online advertising campaign. As it happens its also an image that I've had published elsewhere.

Went out on the common for a couple of hours in the evening light and came across the first few flowers in one of the heath-spotted orchid colony - at least I think its heath-spotted, could be common spotted. Tricky things these orchids. I should have paid more attention to the leaves.