I'm going to nit-pick before I get to the rest of my post. Why is it that you (the OP) refer to the male proportion of this forum as "men" and the female proportion as "girls"? For one, there are a lot of teenagers here and for two, why are we females automatically given a group term with connotations of a younger age? Why are we also asked if we agree with positions already taken by the males here, rather than the other way around or simply asked for our own opinions? Again, this is nitpicking, but these are noticable descrepancies which have an impact which I'll go into later.
On to the rest of this.
I would define 'feminine' as a set of characteristics which a culture has naturalised for people with female genitals. What this means is that if something is defined as 'feminine', it is associted with the female due to repeated allignment of the two through a cultural canon. This varies from culture to culture. In my experience of current western culture the naturalised attributes designated as 'feminine' are passive and come along with a longstanding system in which the majority of power rested with a select male elite. Characteristics such as chastity, nurturing, gentleness, submission, elegance, delicate and youthful beauty etc. I don't consider these to be traits which are automatic to females people, any less than the strength, stoicism etc. associated with male people are. As mentioned, these are of a cultural construction.
I personally see feminine characteristics as beginning with "considers herself female" and ending with it. As such, I'm a feminine person. I'm not a traditionally feminine person given that I posess too many traditionally 'masculine' qualities and am of too solid a build. I am strong, capable, willful, skillful and intelligent. From my perspective my personal traits are irrelevant as it is personal identity, not cultural codes which define my gender. I have been influenced by culture over my life but that has become an internal contribution to identity rather than an external label.
I'm going to bring up a feminist ethical point here. It relates back to my nit-picking at the start. The problem with using 'feminine' as a definition associated with a set of characteristics is that it tends to devalue the link between women lacking those characteristics and their gender identity. It is also used to degrade and 'cissify' males who have those traits. The OP refers to a preference for these characteristics. I don't take any kind of issue with that, preferences are not a problem. Normalising people who have traditional feminine traits is, as it ostracises the rest of us. The language used in the first post to refer to women does this due to the association of women with immaturity which implies the 'youth' of femininity, but also a reduced capacity. Just nitpicking, again, but these are meanings that weren't considered and really should be when writing threads like this.