I am going to be posting some pics of myself in another post, with this same question.
But one thing I did do, earlier in my transition, was to get a big bulky watch from Walmart for 15 dollars.
It had all sorts of things on it I never use, a compass, and who knows what else. But it looked really "male".
Unfortunately it got stolen when I was at the chiropractor -- people always remarked on it! I got another, but it's not as helpful.
The bulky watch seemed to help people see me as a bit more male, I experimented wearing it, and not, and it did really help, though it was heavy to wear

I, too, had large breasts, and tried a hundred things with binding. Mostly what helped was to use 2 - 3 methods of binding, with several shirts (I was easily a DDD, so that was kinda the issue, not how I was binding). It was hot, too many layers, but it made things look better.
I am now recovering from surgery, still not able to go really much without a binder, so waitingfor that day.....
I wish I had gotten the surgery sooner, I would suggest trying to get it soon, if you are clear, and what you want to do is pass. It seems to make a difference, already, even out a bit in public with the binder on.
Straightening the base of your sideburns will help, right away.
I found buying male shoes early on, and also "cargo pants" in the men's dept., where there are lots of pockets, and wearing them low, may have disguised a bit more of my hips, too.
Sweatshirts were a good top layer, once I was bound, sometimes with a corduroy button down, that I left open most of the way (cause of the heat!) and just buttoned it right around my chest area.
Good luck.
Joseph