I looked at your pics in the pass thread too and to be honest what I noticed most was the sandals... not sure if you wear birkenstocks often but unfortunately I think they give off that butch vibe, especially since as male you look a bit young to be wearing them. I know they're comfortable and all, just talking in terms of passing. I didn't see any issue with your chest, like if I was reading the rest of you as male I wouldn't look there and think "nope, not male". Not sure how you normally dress, but clothing can make a big difference. Having jeans that fit you well and don't emphasize curves is key. I think button downs over khaki pants would look good on you. I would avoid cargo shorts and baggy clothes in general though as they don't tend to help with passing if you're borderline. Just my .02 based on personal experience and observation... good luck.