guys maybe im going crazy and starting to overanalyse everything in arcane BUT LISTEN
one thing I kept noticing in s2ep7 (which I rewatched an insane amount of times) is how different powder's mimics are from jinx's
like even when her expressions are pretty calm and she's not smiling ear to ear she has SMILE LINES !!!! I've watched arcane a bunch of times and never noted out the same for jinx. yes we see her screaming/crying etc and her mimics are obviously expressive in those moments but when she's not experiencing some crazy shit her face is just kinda blank ??
a lot of people have already said how powder is taller, has different physics and healthier skin tone and I think her expressions is another thing that shows how much her and jinx's lives are not alike
she has a ton of reasons to smile every day while we've barely seen jinx do it :((((( powder is happy and it's literally marked on her face :((((