Howdy.
The wing is not connected at leading edges, nor at the trailing edges.
It is hollow, and typically cambered, fat section forward. In the wind tunnel, air starts to flow over the wing, at zero angle of attack. The upper surface wants to move, which portion of the upper surface leaves first, trailing edge, or leading edge?
IOW, where is the center of lift on the upper surface, chordwise? Behind the equidistant point LE/TE? And how does this orient the chordwise axis to the longitudinal centerline? Negative?
You have no tail surface, only wing. How will you fly? Worse still, how will you increase the decreasing AoA?