in the Russian language, ... "drawing ..." and "painting ..." are almost synonymous

I suspected as much, because you seem to use the terms interchangeably. AFAIK watercolors are always considered paintings, gouache, too. I've never seen it any other way.

I will try to be more correct

Don't sweat it; it's just my smartmouth running away with me. As long as you keep sharing your beautiful art with us I'll be happy.

mr. Folker

I'm no "Mr.", just plain Folker which is my first name :-)