As mentioned with the proportions, another this is I'm not sure if you did it intentional, but she's very manly in the arm, face and neck. Symmetra has a wide chin, but not such a sharp jaw line - that's a manly feature, her neck as well is not very thick - most females necks are not thick. Females can be strong, but almost always unless it's a bodybuilder, the muscles aren't so in depth, they're somewhat softer. Keep trying to perfect the femininity of the female ;)