B&W + colour using 2 images
I think this should be drop dead easy, but I can't get a result that I am rally happy with. What I want to end up with is postcards that has a black and white image over laid with 3 much smaller images that are in colour plus some text. the Only way I've managed to achieve this is to desaturate the colours of the large (background) image then place the smaller images where I want. Now although this gives me what I want, I'm realy not that happy with the black and white image, if I select duotone, I feel it gives me a far better B&W image, but then all subsequent images that I drop on top get converted. Is there a better way of achieving what I want.