2024 was my first full year of taking fit pics, and, while I don’t think my style has progressed significantly (sadly), I do think it has really helped me to refine what will probably look good, or at least not bad. I generally don’t change clothes once I put them on (I’m sure you can tell), so this has been a big help.
Similarly, it’s helped me let go of stuff that I like for me in the abstract but hasn’t been working in practice.