I've using the the same lab for the past 4 rolls and for some reason, the skins of the people that I shot came out looking so "reddish". While I understand that we're brown but we don't look this red irl.

top left - Kodak Ultramax 400
bottom left - Fuji 200
top right - Fuji Color 200 (different lab)
bottom right - Vision3 250D
all of 3 use Noritsu HS-1800


so the question is, what's the "problem here?
is it because of the film stocks?
is it the machine?
is it the present the machine use? (idk how the process actually works)
is it the chemical?
and what should I do from now on? change the lab and the machine? or should I ask them to scan the negative back to me as well so I can add the colors myself (I have no idea how lightroom works but I assume I can download presets for each filmstocks to add the colors right?)
THOUGHT?????????