the backpack one kinda makes you look like a kid.
the ski one is no good because you can't see your face.
other ones are fine imo.

they are all average the issue is they are all kinda posed,

I think getting good pics doesn't only involve ur jaw line in pics.it should show ur value .i suggest u to take good pics with good fashion and looks natural not posed

1 and 4 are good, but the others all look too posed or unflattering to me

I think 2 and 3 are the best here