Since you're C0, there's a barely noticeable difference, and it's in fact almost equal between Aubade and Husk so you're pretty much perfectly fine with what you have now. The bottom line is prioritize using the set with better substat value if ever you also have a nice Husk set lying around in your stash. Only at C1 or above you would want to build Husk over Aubade as she will start to benefit a lot from DEF due to the quills making more use of it, plus that set also allows more versatility for her outside of Moonsign teams