She sure has aged. Her hair is a different color and isn't doing anal. Times have changed.
as much as I love her anal scenes, she's also not the best at them - in both of her Evil Angel anal scenes (Busty Anal Beauties and Too Much Anal 2) she's had very hard anal sex, and some leakage which can only be described as "yellow" fluid (definitely not white!) coming out of her ass.... many girls have an enema just before an anal scene, and do not eat or drink specific foods the day before, to avoid any accidents, but I'm not sure if Rachel is as strict on this as others, which leads to footage which doesn't appeal to the average viewer
I absolutely love Rachel and think she's stunning, but unfortunately she's either had a couple of really bad accidents happen on set (I'm totally ignoring the Brazzers Live episode here) or she's not having anal sex regularly enough in her personal life for it to be as "natural" as it appears for the likes of Phoenix Marie and others