@malte it definitely depends on your goals with feminine clothes. Wildfang is awesome, for sure. There are a lot of interesting gender-neutral companies these days.
If you're looking for clothes marketed specifically as women's clothes, check what company has fit models that match your own physique. For example, I've always found Banana Republic to be geared more toward tall people with broad shoulders and narrow hips compared with their waist. If you're more stocky, there are plus sized brands that might be a better match.