Thanks for your comments. The framing of the first was deliberate - I didn't want balance, with both birds being an equal distance from the edge of the frame, but to have space for her to walk off into, leaving the male drifting out of sight. I thought that would add to the sense of her not being impressed by his display. Maybe that didn't work out so well after all.
I imagine lots of people would expect the B&W shot to be a colour one. I've seen a lot of close-up shots of peacocks displaying, and they've all been in colour. I wanted to emphasise the shape & form, which is equally as impressive as the colours. The monochrome does that for me. YMMV.