I think if you've bought EVERYTHING pink, then she will look a bit daft. Imagine you did it with another colour, yellow dress, yellow hat, yellow shoes, yellow teddy, yellow pram, yellow blanket....
I have boy/girl twins, and I thought, for her, ooh finally, nice flouncy, swishy clothes (as only had boys before this) and it turns out now age 2, girl twin's favourite thing is dinosaurs. She wears a variation of pyjamas in particular, of grey, white, green, blue, purple, and grey....as long as they've got dinosaurs on.
I do wriggle her into a dress every now and again, and she does look nice, and she doesn't seem to care what colour. I never put her in navy or black, as she looks all washed out in dark colours. She looks great in pink, but doesn't really have it, as there's never an influx of pink dinosaur attire.
Elder DS had a pink Hackett polo and a white and pink striped RL shirt, both worn with beige shorts, and he looked very dapper!