Her nose looks more pig-like in these photos. Almost like Posh's pig nose. It looks VERY different to me.
I think she has had work done, but I can't pin point it all (other than a possible nose job).
ETA: After looking at it some more, the teeth look like they have changed, her eyebrows were plucked, her cheekbones seem more noticeable now (loss of weight?), the freckles are now gone......