You’re fine. Last week I went to an EF Mass and wore dark blue jeans and nice black sneakers, although it was paired with a nice top and sweater over it in a cold church in a not-so-great neighborhood.
There is no universal dress code for all TLM locations. What you wore sounds fine to me. Open-toed shoes for women are neither immodest nor inappropriate. In choosing how to dress for the TLM, I would err on the conservative side. Diocesan and priestly societies (FSSP, ICKSP, etc.) that have the full approbation of Rome tend to be fairly lenient as long as it’s modest. The SSPX, whose status within the Church is complicated but becoming more clear with time, would probably be a bit stricter. Some TLM locations that act without any official status or permission can be fairly strict — some are, some aren’t.
There is an sspx church right around the corner (like a block away) but I have been going to the fssp church about 3 miles away. Am I able to go to the sspx for confession and for Mass today since I won’t have a car to get to my fssp church?
It’s October. Some people throw the open-toed shoes in the closet on the day after Labor Day. That isn’t a TLM thing.
In our area, it is not “dressy” to wear open-toed shoes without manicuring and painting your toenails. You’ll hardly see a woman in open-toed shoes unless she’s done her toenails. I think it is because the “acceptable” alternative is to wear sheer* hose, and those are too warm in the summer when women want to wear their open-toed shoes.My own personal preference is for shoes that are not open toed simply because I don’t think my toes are pretty - toe next to big toe is longer than big toe
I guarantee you that 50% of the congregation (guess which 50%) will absolutely never look at your feet.