Ah Marco my friend, seems we are following each other around the same part of the sky...this is my current project too and a very similar field
with your automated setup, you are of course doing it much more efficiently than me
...mine will be much less than a days worth of exposure though
Anyway, just been looking at your site and saw this (before you posted here) - this is really great and yes it is an awesome cluster indeed and you have captured it very nicely
...seems you missed the Supernova though
...so at least that will be something different between our images
Mike