。
She's not photogenic, is she?
Literal
She [topic-は] photo-appearance [subject-が] bad [right?-ね].
写真うつりが悪い literally says 'how she comes out in photos is bad' — she doesn't photograph well. 写真うつり (the way one looks in photos) is a useful compound: 写真 (photo) + 写り (how something appears). The opposite, 写真うつりがいい, means 'photogenic.' The sentence-final ね seeks agreement from the listener — 'right?' — making this sound like a conversational aside between people looking at photos together. うつり is written here in hiragana but is often rendered as 写り in mixed-script writing.