I'm new to packing light too. Last European trip was 25 years ago when we took riding boots, breeches and a helmet for a week long trail ride in Ireland, plus everyday clothes. And we came home with a "pet box" full of souvenirs.
I'm leaving in two weeks for Venice, Croatia, Slovenia and Austria (Yeh!!). I think you're packing a bit much. I'd leave out the jeans because they're heavy and bulky. Because I had melanoma, I try to wear long sleeves and pants. Also my crepey legs cringe at capris and shorts are only for home. I suggest doing test packs, then weigh and measure your bags. Packing cubes help. After doing a couple test packs for weight and bulk, I came up with the following for my carry-on. Total weighs 19 lbs. and I'm using RS's rolling carry-on.
4 legging: black, gray, red and wear black/gray camo
2 short sleeve shirts, red and cream
4 long sleeve shirts, black/white, white print, black w/ red zipper doubles as a light jacket, and wear another black/white
2 tunics, black and red/black to make the leggings a little dressier
shorts and sleeveless t-shirt for sleeping, and can double as daily wear.
red tank top
2 black camisoles and 1 dreaded bra, wear 1 cammie
5 undies, wear 1
6 pair socks, wear 1
red jacket, water resistant
2 throwaway hooded rain coats from the 99 Cent Store.
2 pairs shoes, wear 1
1 pair fitflops
tour/flight information folder
In my PacSafe Citysafe 4000 tote, which is stuffed full at about 11 lbs., is
black pashima which will double as a blanket on the plane
cashmere black sweater
drugs, snack bars, a couple days of supplements
chargers, battery pack, plugs
camera, small tripod
book for the plane
fairly large Travelon crossbody purse which holds every things my home purse does cut down to scale and has room for daily sightseeing paraphernalia
neck wallet while on plane
I don't see the weight as a problem. As I use the supplements the bags will become lighter. The challenge has been to get the dimensions to comply with the airline. Shoes are bulky to pack. I know people on the forum pack a lot lighter. I cringe at the idea of wearing clothes for more than one day. I sweat too much to even consider that. Venice and Rovinj are warm and humid; Europe is currently having a heat wave. It's hard to guess the weather in two weeks and during the 2 1/2 weeks we there. Everything I'm taking is hand washable and almost all are tech fabrics that will dry quickly.
Have a great trip!