How to use "similarity" in a sentence

Branwell still cannot believe it, yet the similarity is perfect

There stood Miss Fairlie, alone outside in the moonlight, looking exactly like the woman in white! I suddenly realised that the 'something missing' was this: my realisation of the disturbing similarity between the fugitive from the asylum and my student at Limmeridge House.

But it can't be the same man! I must be going mad! Ever since I saw the similarity between Miss Fairlie and the woman in white, I've connected them in my mind

Now the similarity between Laura and Anne Catherick was stronger than ever

I thought of those famous words from the Bible: 'The sins of the fathers will be visited upon the children.' The fatal similarity between two daughters of one father had caused all this suffering.