A Victorian Wedding

Whilst clearing out my late Dad's house I came across a very old and broken small glass negative measuring about 30mm by 24mm. It had very little density but looked like a wedding photo.  Research showed that it was a picture of Edward Boys and Mary Ann Newell on their wedding day on 20th February 1860 and as such it is a very early photograph.  Edward Boys was my great, great, grandfather.  I placed the glass negative on a white screen on my ipad and rephotographed the negative.  I then attempted to remove the obvious crack in the glass in photoshop and have ended up with the above picture of Edward and Mary.  I have included as an extra the glass negative as I found it so that you can see what I started with.