Very nice image Steve! Though I find myself drooling slightly at the resolution you have compared to
the ASASSN-14ha image I took a couple of weeks ago 
My view of the galaxy was only worthy of the beginners astrophoto page, but you have bags of lovely detail in the arms there and lots of extension in the swirls of the arms. The SN looks to have faded a bit in that time, going from about the same brightness as the neighbouring star to noticeably dimmer in your image.