Sleeves feel an look beautiful when they are cut on the bias.
Be warned as it takes alot more fabric and not all prints will look good.
Avoid one way patterns and determine if stripe patterns look good to your eye when cut on the bias.
If you have a full arm, this adds comfort.
I have also found that many light weight woven fabrics look better if you line your short sleeves. It adds a rich look to your garment.