Two things that can make every outfit look exceptionally better are....
1. A clean, short haircut (especially since the weather is heating up)
2. Get in shape. Losing some weight and toning your chest and arms will not only make you feel and look better, but you can slim your clothing down and layer more easily without looking all puffed up.
*Bonus: Posture. Standing up straight will instantly make you look more confident, more fit, and let your clothes fall smoother over your body. Not to mention it is healthier for your skeleton.
Yours in style, Style Blogger.