Yes it would be nice, but I’m afraid my drawing is worse than my writing (if can be believed).
Since I can’t get to sleep, let me try to put you to sleep with more of this. The tips should stall last on a well designed wing. Raisbeck’s Saberliner wing has the tips warped (twisted) down so that the wing root will stall first. Now on just a regular swept wing with no fancy clever stuff the tips will stall first because of 1. the leading edge vortex is thicker at the tips then the roots, (i.e. a span-wise diversion of the boundary layer) and 2. an increase in the local lift coefficient towards the tips, caused by a large downwash at the wings center and hence a relative upwash at the tips. That is why bending the tips down reduces the chance of tip stall, (alpha is lower).
Let’s just simply and say that empirically it is shown that the rearmost sections of a wing tend to lose lift prematurely. This is a true statement and the theory behind it was shown mathematically by Pistolesi, Mutterperl, and Weissinger. Basically the simple lifting line fails for swept and curved wings.
As for visualizing the vortex, think of a sheet of paper rolled into a cone, overlapping itself. The pointy end of the cone is at the L.E. wing root, and the wider portion is at the leading edge of the wing tip, roughly parallel with the wing sweep. Now can you see from the vortex how the tips should stall first and then move its way in?