I have seen bits a lot worse than either of those but that still doesn't mean that I would use either of them
The first bit, the chain is the curb chain to make it into a leverage bit. I am not really clear on how exactly the angled, hinged mouthpiece is supposed to work but I can tell you that most people would end up with a horse gaping their mouths with that much tongue pressure.
The second bit is designed to make a horse tuck their nose and flex at the poll to create the illusion of being soft on the bit. I think the little loops on the end of the strings go through the rein rings at the bottom and then you attach your reins to them. That way, when you pick up on the reins, not only are you moving the actual bit and applying a curb action with the curb strap, you are also putting pressure on the nose.
I personally really dislike the mikmar bits because a) if you need to use every pressure point on the horse's head to get them soft on the bit, then you have a training problem, and b) the straight bar mouth pieces allow for zero tongue relief and unless the horse has been properly prepared for a mouth like that (i/e a vaquero's spade bit horse), then it will lead to head tossing and mouth gaping.