Maurus, this is an interesting photo. Nicely framed and I find the B&W works well here. Not sure I could pick you out in the crowd, lol, but sometimes thats good, eh?
Pax
This works well as a B/W and also as a composition. I find that the sharpness and texture of the grass is extraordinary. This is very good, but IMO also somewhat draws away the attention from the "whole" picture.
I guess that choosing to present a shadow as a self-portrait is very telling about the person - so in this it in a way indeed serves its purpose as a self-portrait! But I'm curious: do you reckon that people who know you could readily recognize you from this picture?