You guys are awesome! Those are great videos; I'll study them! Thank you!
I find that animated video rather confusing (judging by the reactions in comment section I'm not at all alone), as there is not always clear which is the take-off leg. If I may recommend something, try to learn the system first rather than individual jumps. Thats how I have learned to recognize jumps (I admit that sometimes I make a mistake watching it still, but understand the logic). The system can be found here:
https://en.wikipedia.org/wiki/Figure_skating_jumps#Common_jumps
But its not necessary to learn it all at once. First thing is to learn the entrance into jump: forward entrance, that's axel (the easiest to recognize), and backward is the rest.
Then aim at the rest: is the landing leg the same as taking-off leg or different. Same: loop (rittberger), and toe loop. Then you can recognize those two easily, first is not toe-assisted, second one is (it can help that for decesive majority of skaters it is right leg, which is taking-off and landing for those two jumps, fo toe loop it is left leg which serves as toe assisting).
So, now three jumps are remaining, all with backward entrance and different taking-off and landing leg (again, it can help that it is mostly from left to right leg, exception is e. g. Ashley Wagner). The best is to differ them now by the presence of toe-assistance. Salchow is not toe-assisted, the other two are. So salchow's specification is backward entrance, different taking-off and landing leg, not toe-assisted.
Now we have two jumps, flip and lutz. Both toe-assisted, backward entrance and different taking-off and landing leg. Here is the moment when it is really necessary for the spectator to focus at the inside/outside edge during taking-off. If the edge is outside (skater bends the leg to the opposite to the rotation) that it is lutz, if the edge if inside (more natural), it is flip.
So the things spectator needs to focus are: forward/backward entrance, same/different taking-off and landing leg and inside/outside edge.
I don't know if this helped, but thats how I was able to gain the understanding of the jumps.