If you'd have just 'Aged' Sigourney Weaver, added a little weight & given her grey hair, you'd be closer to the 'real' Ripley. You've added a Boxer's jawline, & made her over big Breast & Hips wise. Yet if you compare the 'young ripley', Sigourney was 29/30 when Alien was made, she's coming up for 73 this year. She's now of an age to play her Grandmother in Alien, yet she still has the same basic body shape as when she was 30, fuller & softer, & more defined of face, but still instantly recognisable as 'Ripley'. I may have to 'age-up' a version based on a 50/60 year old Sigourney Weaver, just to show what I mean.