The first picture is excellent, the stab seen dead rear. Top and bottom side are drooping from root to tip, that is the anhedral (the reverse of dihedral). It seems to be 3 degrees (on each side), measured at the elevator TE. There's much optical illusion in the other pictures due to combined taper, sweep, and anhedral and non-square viewing angles.
As to the wing, the non-symmetrical airfoil is not visible but there might be a wash-in, I mean the wing tip has less angle-of-incidence than the root.
AFAIK it's not uncommon to design highly swept wings with such a "belly" at root and decent twist/wash-in (airliner wings for example) but we'd need a real aero guy to explain the rationale behind that (especially for a pattern airplane). On the other hand, the attached picture doesn't look like "perverse" airfoil or wash-in. Maybe it's only the building method, upside down like the stab, what is shown in the drawings. After all the wing ribs with the tabs had to be constructed as well as the stab ribs to get the building fixture.
BTW, how about undistorting the photos? RCU seems to remove the EXIF data so only you could do that before uploading.