I have been wearing this outfit for years. It will never go out of style. Blue jeans, brown boots, white shirt and navy blazer. I think the white lace top cancels out the cowgirl feel. I always feel girly in white lace.
This is a Sunday brunch with the guys or family outfit! I feel like you don't have to wear dress pant to wear a blazer with a dress shirt. Just throw on some plain, simple jeans and add on that beige blazer with a neutral color dress shirt.