Simba reminds me more of Tasha then Nala does... especially in that picture you posted (the ears!) if only Tash had ablack muzzle. All three had a bit of resemblance.
Yeah I'd agree she resembles Simba especially in expression. But she is also very lithe, long and slender boned. I think that's why she looks like a cross between the two. She's also very feminine, like Nala. That might sound silly but I think there are definite feminine and masculine traits in dogs.

Anyway, she sure would look right at home with those two.

PS, I didn't even realize when I posted the picture how identical their ears look there, LOL