It took me a long time to get around to wearing t-shirts. Often they can look a bit frumpy of fit too tight. Finding a happy medium on fit and length can be hard to do. While I prefer a longer but not tunic length shirt, you may find you have different preferences. My favorite is the 3/4 Sleeve Tee because the length is just right and the sleeve length is great to wear for most of the year.
I have a natural preference toward black, gray, and navy. Neutral colored tops make mixing and matching a breeze. You can add some flair to your outfit by picking tops with fun details like the tie front top or through tops with prints.
In the past, I have had three or four different black cardigans and several others in a variety of shades. At one point, I had more cardigans than tops. For a capsule wardrobe I would recommend having one or at the most two cardigans that compliment your wardrobe. As for sweaters, they can be solid or patterned. I'd include a relaxed and fitted sweater.
Personally, I have a hard time with bottoms because of my body shape. Unlike most larger women, I don't have hips. Finding the perfect pair of pants can be difficult. For your capsule, I would suggest picking two different cuts of jeans but you could totally just have more than one pair if you find a cut that you love. I have a pair of boyfriend jeans but I don't really care for that casual of a look. I prefer boot cut and a wide leg trouser jean.
I usually gravitate towards dresses over skirts, because there is no need to find a matching top. The right skirt can be just as versatile as a pair of pants. I prefer knee length A-line skirts because they look the best on me. Pick a skirt that suits your lifestyle in a color that would match other tops in your capsule.
Before I had children, I would have worn a dress everyday. They are just so easy. I really prefer a shirt dress or A-line dresses because they look best on my body type. You may find you like sheaths or wrap dresses.
Make an outfit look more pulled together with a jacket or blazer. I typically layer with a cardigan but I want to try adding a blazer to look a bit more polished. I already own a great denim jacket that I got for a steal.
I've already made a few purchases including a pintuck swing top in black, a navy tunic, and a green blanket scarf. I still need to purchase a pair of jeans, a skirt, a dress, and two more t-shirts.