This is great. I love the piece a lot. And what did you say? Scared of tonal music? I would say the opposite. Atonal music always creates a distance, but here emerges the eternal discussion: what is atonal? Sometimes it is only the absence of a clearly defined tonal centre or fixed scales. What really frightens me is music without harmonious tissue, without structure. Dissonant harmony can be perfectly OK!
Your tiny piano piece is indeed a welcome study object for students.
Your comments regarding tonality were well expressed and quite right. My comment about being frightened by so much tonality was a bit of hyperbolic fantasy. I often comment on atonality, taking great care to clarify that it does not necessarily require dissonance, lack of structure, or serial music, all of which may be a part of it, but certainly not always. I have often considered strict tonality useful for choir singers or barber shop quartet singers of little musical talent.