This is a very simple yet adorable outfit. The sweater is cute, plus the shorts are classy and stylish. The tights seem to add a professional look to it all.
needs a "jazzier" sweater. the shorts are very trendy, but the sweater looks like it would belong with their long-pants cousin. you need a shirt that comes up to their level. maybe a preppy broadcloth shirt in an eye-catching color.
I like it, but it depends on what look you're going for. If you want to wear shorts in winter, the tights are the right way to go but some bolder color use on top might be helpful. Maybe a bright scarf even.