"She wears dress set or suits to work " Bonus, if you're in the WORKING FIELD as a professional, that's how many SMART business/fashion savvy women dresses when they go to work! Think the 80's-90's Dynasty, Dallas, Falcon Crest, Beverly Hills 90210 TV series. That's HOW I dressed! Not a lot of people dressed like her anymore. They dressed, like they just got out of bed, leggings, yoga pants, etc. (how do you explain that?)
" She doesn’t wear makeup most of the time" A lot of confidence, right there! Why complain about this? She's showing the world, her natural self. I see, you're trying your best to BRING your daughter down!
"she wears dresses and heels most of the time outside work. " If she wears that to work, maybe she doesn't want to change - after she gets out of work! Buy her some comfort shoes! Wearing dresses, you obviously don't wear 'comfort shoes' with it.
"she is always conspicuously overdressed." All I can see from your post, is she enjoys looking NICE & PRESENTABLE, and you don't have to wear makeup! Some women are naturally beautiful & confident without. Mom included! And you're jealous!
"How do I tell her" You don't! She's a working adult, and she's no longer in grade school.
"her unapproachable" The RIGHT MAN will find her desirable & attractive, but as long as HE STAYS away from YOU, THEY will be happier!
My mother shared me her opinions in a negative way, but she never complimented me, no matter HOW I TRIED TO PLEASE her, but I was being myself. Married almost 44 years, and still married, when I met the 1st guy from work. It was love @ first sight, you could say, I got it right the 1st time, and my mom didn't gave me her smile of 'approval', until she heard someone complimenting me, while doing errands together. I was 50 then!