[Debezo]

In most cases, it is normal for women to use 'da'. in some cases, it sounds a bit masculine. for instance,
'dane', 'dayo', 'dayone' are clearly ok. but 'dana', 'daro' sound masculine.
In the short sentence such as "a, inu da", "sou nanda", it's ok. but In the long sentece, it sounds a bit rude. it's hardly used in daily conversation whether men or women. though ok in a discussion or in a writing.
The sentence which has 'command' meaning such as "dame da", "...bekida", sounds masculine.
well, I have no brief answer, but good teacher will come soon.

And 'wa' sentence rather sounds like (old-fashioned) lady than girly. It is only used in something like tv dramas and movies now. "...dawa" sounds a bit theatrical to me except for some dialect. In the dialect (especially in kansai dialect), it is not a gender specific sentence. women and men both use it.