I like the composition with the climbing birds and taller background on the left. I also like that there is just a hint of detail visible in the birds, and it kept me studying them.
I think a version that had been shot at a smaller f/stop, to give just a bit more definition to the hills, might have been interesting. I know you were juggling light/shutter speed, etc., but could have probably pushed up the ISO a bit.
Very nice composition Manos. Wing position of the two birds is similar, which emphasizes the balance. Beautiful lighting and just enough detail to make it real.