Throwing some simple over the tee will help spruce up the outfit, plus add some ripped denim shorts and a feather accessory and you have an urban look.
Keep it edgy with a splash of black. Feel free to throw on boots with this type of look.
You could also keep in the theme of the skirt and keep it feminine with a flowy skirt.
When all else fails, a light wash of denim will keep it springtime but also keep you comfortable.