Hi Zenon, welcome to BPN!! Always glad to see fellow countrymen contributing here :-)
Just an FYI that we normally limit threads to one image per thread (except for worked-on reposts). Since this is an introductory post I'll let it slide ;-)
I've taken a look at your other posts, and you have some strong work to offer us. You should post some on the Avian forum (limit one per 24 hours) where you will receive the great critiques that we have become known for. You can also post in the Eager to Learn forum if you would rather test the waters first (or feeling shy with all the talent we have posting there)...there you will receive great advice and learn new tricks to get your skills up a few notches higher.