the third pic in your post was taken by me (pinched from the BMMAA web site, as i put it there). these two corbys are the sportsman aviation ARFs. the blue and whit one behind is mine, painted the same as my fathers full size corby. as for the dihedral, the model doesn't have as the full size. there ar plenty of other slight differences, but they are good models, excellent behavior in the air and on the ground. Good luck
PvA