...Whereas I still can't see any real "change" there.
I mean, yeah, the ridges may be half a centimeter wider in some episodes and narrower in others, but so are Picard's wrinkles, depending on the amount of makeup applied from day to day, on the lighting conditions, and so forth. And so are
Stewart's wrinkles in the real world.
And judging by those photos, the latter-day B'Elanna just combs her hair differently: you don't really see her hairline the way you see it in the pilot, as the lowermost visible hairs go forward rather than up.
Worf changed a lot. Ro changed a little (perhaps those little V things only become visible when the character frowns, and Ro eventually learned to relax

). But the human characters seem to have changed more than Torres. Which is something of a shame, as Klingon hairdos are distressingly monotonic, perhaps as dictated by their culture.
Was it solely the captain's privilege to get a new 'do every now and then? I mean, seven years... Wouldn't they get fed up with seeing the same faces day after day, including the one in the mirror?
Of course, we could argue that these folks did go for change. And that could include subtle facial surgery, which would be no more complicated than getting a haircut today. Perhaps Worf just decided to redo his forehead one day, and liked the new style a lot? Perhaps Klingon women get hairier by the week, and Torres fights a descending hairline with occasional surgery?
Timo Saloniemi