When you say, "...my new project" are you calling this an original work? I have this image stored on a drive somewhere but as I recall; the stored image I have does not contain the figures outside the shop and there are a few other differences but, it is very much the same scene. I'll look for my stored copy but in the interim if you are using another persons work as a starting point it would be more correct and nicer to credit the original and call this a variation on the original. Give credit where credit is due otherwise it makes you look like a petty thief. I'm not saying that you are appropreating someone else's work but I'm certain I've seen this shop seen at least a few years before now.