A quite promising set, Aydemiru.
I like most #1. The men seem talking, but their facial expressions and the curiosity of the observer in the middle says they rather argue than chit-chat about the weather.
In #2, the lady herself deserves full attention, I believe, so would crop the top part radically to get closer on her.
In #4, the man has very interesting face worth of a detailed portrait, hasn't he. I know, easy to say harder to do.