A great effort Eugen and welcome to the forum.
Be warned, astrophotography can be all consuming and a never ending journey...
However, here at IIS we are all still on the journey, main thing is to have fun!
Re downloading: The server will accept up to about 1.2Mbyte, then it will downsize for you.
The EQ mount and then guiding is the way to go, one step at a time.
Your result:
Quite well processed, good colour balance and detail.
As Adam said, you will come back to Orion many times.
Well done
