Love the idea of a "tweedy bombshell"! I might have to mull that one over...
I don't really think about gender and femininity very much, and never really considered myself either a tomboy or a girly-girl. I do all the household DIY work and like to tinker with computers, but I also spend a lot of time here on YLF and have a very sensitive and caring (stereotypically female qualities) personality.
I think that I have a fairly obviously female appearance, but have been mistaken for a man. In my early 20s I cut my hair quite short after a bleaching disaster, and even though I was wearing earrings and lip gloss, customers at the big box retail store I worked in at the time called me "sir" or referred to me as "him" all the time. I guess they thought I was just an unfortunate guy with massive man-boobs? I suppose the boxy polo shirt, baggy jeans, and doc martens didn't help...
These days I'm not really conscious of trying to look feminine or intentionally mixing feminine and masculine looks. I tend to dislike very girly things, like lots of ruffles, lace, and pastels, but in the last few years I have become more interested in style in general and the messages that are conveyed by my appearance. So in that sense I suppose there is a certain kind of feminine that I am aspiring to -- one that is, as my husband once put it, “approachable, but no bulls**t”.