I'm only 45mins from Wales and it's £3 a photo here or £10 a set of 4 although I ended up paying the £10 and was given 8 lol my friend had a scan done in Cardiff and her pics were same price, quality depends on baby's position and your weight etc but usually they will do their best to print a good one
Although not in wales, here across the border it is five pounds. But if they print more than.one off it is there choice to give you the extras so even if you get two or three its five pounds. Obviously will depend at each hospital but I think the standard rate is five pounds per photo.xx