Yes, this is a great combination!
Yellow and Brown can go together depending on the outfit: A yellow shirt and brown pants would not work. But a yellow and brown shirt with jeans would look great!
Magic
no but if you really want to wear those brown pants wear a yellow shirt.
I am Shirt
The two colors do go together! However if I were you I wouldn't wear the red under the blue. If you had a red sweater and wore bright blue under that it would look great!
shirt
x =shirt y =sweater shirt + sweater = $40 x + y = 40 shirt + 12 = the price of the sweater (price of the sweater is $12 more than the shirt) x + 12 = y x + y = 40 x + (x + 12) = 40 2x + 12 = 40 2x + 12 - 12 = 40 - 12 2x = 28 2x / 2 = 28 / 2 x = 14 x = shirt = $14 IF... shirt + sweater = $40 x + y = 40 14 + y = 40 14 + y - 14 = 40 - 14 y = 26 y = sweater = $26
A half-zip sweater can be worn with a dress shirt, an oxford or a plain tee. Wear a tie with your shirt to dress it up the half-zip.
Without tie or cravat, over. With tie or cravat, under.
Shirt, smile, sock, sweater
U can wear jeans and a long sleeved shirt i would wear a sweater in the morning
A v-neck sweater is just as appropriate as a vest. As always it depends on the rest of your outfit, and the place you are wearing it. For a business setting, I would say that a vest is not very acceptable, but a sweater would be OK. A shirt and tie would be better.