Sky is drawn from my photo-reference, sea is from imagination.
This drawing was very quick and I surprised that it turn out to be good. 0_o Usually I spend much more time on drawing, but I guess Procreate brushes do the main job for me: with this good brushes I don't have to do much.
I was trying to find how to translate phrase "неспокойное море" into English, and google suggested these translations: "stormy sea", "troubled sea" and "rough sea", but I have a feeling that this isn't right translation. So this is why here can be confusion in the title of drawing, but whatever.