Hi there, @MinGry, welcome to the Forum!
This is a decent piece of music, for a start, although, I do realize there a lot of compositional errors too.
Bars 1-2: One of my favourite parts. It kind of has a nice, catholic tone to it.
I would say, this quiet opening really fits my style. Appreciate that, though stop writing tempo numberic markings, and start using muiscal terms more. (eg. Allegro; Fast, or Largo; Slow, etc.)
Bars 2-4:
This is where thngs start to get messy.
(not done yet, gonna come back later)