Privet Sasha! The painting looks great, really captures the depressing Russian winter. ;) Only the tree in the right foreground is a bit lonely, I would try to integrate it better, maybe with some twigs, bushes or something like that. Also I think the boy in the background is too saturated.
The gestures are a very solid start. You have already done the most important groundwork to make the next step and become more analytical with them, and especially to focus on a solid and efficient process/strategy. Lots of people think that gesture is just making quick lines, swoosh swoosh and voila, like a Picasso. Gestures is very difficult intellectual and analytical work, and it goes together with construction. Gesture and construction are two sides of the same coin. Gestures without understanding of construction is just silly swoosh swoosh without structure. Construction without gesture is too dry and boring.
So I would recommend first to take time and analyze what you see. Identify the big masses, the big forms. Anatomy is not so important in this. Seeing the big masses with clarity is more important. This is especially important in construction. It's not so easy at first because the untrained eye has trouble seeing the figure „as a whole“, so the trick is to squint the eyes, so that the picture becomes blurry, then the brain automatically ignores details and focuses on the big shapes. Especially in gestures squinting is important. Play in your head how it would make most sense to draw the figure. Get rid of time limit, it's not important. So take your time, analyze, make a plan, execute the plan.
Then, when you're comfortable with getting the big masses, it's much easier to get into the details and anatomy, especially because then you already have a clear process and strategy that can guide you when there is a problem.
And some links that you might find helpful:
Kevin Chen http://www.angelfire.com/art3/kchendemos/
Will Weston https://www.instagram.com/willwestonstudio/
Michael Hampton https://figuredrawingdotinfo.blogspot.de/