Hi Laszlo,
Very nice picture of the mighty Andromeda galaxy showing fine details, well done
Just to clarify, is this an APOD or would you like to submit it to APOD? If you want to submit your image to APOD, you will need to go here:
http://apod.nasa.gov/apod/lib/apsubmit2015.html
Regards
Slawomir