Our evening guild is really large, you see everything from designer outfits and office wear, to artsy fartsy, plenty of jeans and tennis shoes ... even one lady that always wears bib overalls ... but they are always appliqued or embellished !! LOL ... to each their own ...
Hopefully in clothes! LOL
you had a chance to observe the members. base your choice on what you saw there. every guild most likely has their own clothing comfort level.
I am not one to notice clothes very much, but I do admire the quilted jackets and vests and people often wear.
I too have only gone to a few guild meetings, but I would say that it is a bit dressier than what you would wear to Walmart. ---If you were dressing for Walmart. I wear make up, I also wore a nicer top, and slacks. I didn't feel like I was underdressed. I don't know if this is different in different parts of the country, but it is sounding like most folks around the country dress pretty much the same. Our president wore a dress, she introduced the speaker, and did the meeting.