Would it be tacky to ask my brother to do me and my bridesmaids make up for my wedding

Me and my brother have a 13 year age gap so we've never been super close but I obviously love him as my brother. I'm currently getting married and I'm having to pay for my wedding myself. My parents won't cover anything. Neither will his. I know they aren't required to but I know back in the day it was the families responsibility and I have several friends who's families paid for the wedding. Anywho we are really pushing our budget with this wedding. My brother is 17 and is in high school but going to trade school at the same time for cosmetology. He is doing freelance makeup for people. He did my mom's coworkers bridal party and I think only charged about 30-50 per person. Would it be tacky to ask him to do me and my bridal parties wedding makeup for free?