Amanda Beth, but how does that come into play with Renesmee, who Alice also can't see? She is an individual entity and Alice can never seen anything to do with her, mental or otherwise.
And even if it is mental, that's the whole basis of Alice's power. It is based on people's decisions, the decisions they make in their minds before they take any action. That's why she saw Bella being killed by James before Bella had done anything outwardly to end up putting her in James's power. She made the decision to go, so Alice saw her dying at James's hand. Alice's powers responds more to mental than other stimuli.
Also, there have been enough examples throughout the series of Alice not being able to see wolves, whether it was as the result of physical or mental actions. She has never been able to see them at all, either as humans, wolves, packs or individuals.
Ultimately, as I said in my review, the scene was just so cool I don't care. But it is a bit of a bugbear for me. I'll just believe that Alice painted in the wolves to make up for her blind spot so that Aro could see the full effect of what happened when a member of his guard 'disappeared' because they were fighting wolves and were spat out in pieces, like Jane.