I'm planning to watch this at a measured pace rather than binge it, but will try to post my thoughts on a per-episode basis, though I may not be able to read a lot of the thread at this point.
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Iron Fist, episode 1
"Snow Gives Way"
What fight business there was seemed decent enough. He makes it look a little more effortless than some of his Netflix peers, which is appropriate for the character concept. I like little bits of business like kicking the elevator button in the middle of a fight scene and calming the dog.
Regarding his efforts to convince people who he really is...dramatically, it's not about convincing us, it's about the situations that it's putting him in, and we learn more about him along the way (keeping in mind that not everyone watching is going to be familiar with the comic book character). We also have to understand that he suffers from debilitating origin flashbacks--a superheroic disadvantage worth some extra generation points in an RPG.
When he was trying to convince Joy at her house, he should have mentioned the Monopoly flashback that he'd just had. She may not have remembered that incident...but if she had, bingo.
It makes me feel really old that this guy's been missing for 15 years, since he was a kid, and he has an iPod.
If the dojo scene in this episode was supposed to be the infamous whitesplaining scene, I wasn't seeing it. It was more of a fish out of water thing, showing that he even sounded crazy to an Asian American martial arts instructor. She's from the real world, and he's from K'un-Lun, where he was taught by Lei Kung the Thunderer. That sort of business reminded me of the first Thor film (which I liked).
Hey, why all these complaints about no costume? He wears a mask in the first episode! What, were you looking for something specific?
If there hadn't been another character in the scene, I might have thought that the supposedly dead Daddy Meachum was Ward's head character. Ward's adult behavior isn't as surprising as his sister seems to think it should be, because he was presented as a pure asshole as a kid in the flashback. Hopefully there will be more to him, but he's not very multidimensional so far.