Lot of seemingly intentional similarities between the two. For example, Jeremy Bulloch (the guy in the Boba Fett suit in the original movies) says he modeled the character's posture and movement off of Clint Eastwood's character Blondie in the Good, the Bad, and the Ugly, and when you look at the promotional artwork for Captain Phasma...
Definitely intentional . But aesthetic wise she's my favorite so far.