You can see in the 1st and 4th images (and kinda in the 3rd) that there is a distinct difference between the green (noncheat) and red (cheat) versions of the same weapon/character.
Angles do play a role, but the most defining attribute of superbodies detection is the extended butt of the gun. In the 3rd (red) screenshot you'll also notice that its a bit wider near the area that the character is holding on to. The noticeable modifications to the weapon model start around that area and extend to the back end of the weapon.
To the best of my knowledge the models are made to look differently, but aren't actually changed in size. I could be wrong. But nonetheless, the distinguishing attributes of superbodies should stand out in any situation. The weapon is significantly larger (extending past the elbows) and if you look at the weapon it just doesn't look right (lots of overlapping models/glitches).