It is always nice to see photos of Carltons, especially ones with some chrome. In the 60s I had a second-hand 1954 Carlton Connaught with chrome forks – it was my first lightweight bike. Your Constellation is a lovely bike with the same type of GB spearpoint stem that I had on my Connaught. I still have the stem, and I only wish I still had the frame. Your Constellation looks like an enjoyable bike to ride.
p.s. As a retired professional photographer of over 40 years, I enjoy seeing all the photos of bikes on this site, and yours gave me pleasure.