@Scott1282 I'm assuming you already did this, ie asked the guest to cancel? The main issue is the amount right?
So you have varying opinions from varying sources. Partial, none or Full.
Only you can choose what works for you.
I understand from all your responses that you think the guest is using the photos as excuse for something else. That maybe the case. It does happen. But in my case it's rare. I think I can count on one hand in 8 years how many times I suspect this.
Regardless of what you choose, I would still be objectively reviewing my photos to ensure there was no mispresentation. Guests can look at and have a different perspective to us hosts!
The only other consideration, and do I get it because your income is affected, is that if the guest was legitimately confused as to what they were booking and then they get charged something, it sours their airbnb experience. That impacts all of us hosts in indirect ways. Guests don't really understand that we are all individual /separate businesses with our own level of offerings and how we operate. I've had guests complain before about past hosts and being charged for stuff that they didn't think was fair, all I can say is 'I'm sorry the experience didn't meet your expecatations, I hope I can meet yours". I don't want to judge a prior a host and the situation that I have absolutely no knowledge of, but I don't want to be tarred by someone elses poor experience and be held accountable. I had one recently and I think he had stored up all his angst and took it out on his rating for me.
All the best in your super hosting endeavours and thanks for sharing your experience, we all learn (and i'm gonna take photos of my kitchen stuff now!)
Kind regs
Mary