In general they are true to size (some say the lace ones run a tad on the small side). They are versatile though. They are cute fitted and looser/longer. If in between sizes the smaller of the 2 would be more fitted/shorter and the larger of the 2 would be looser/longer. Some size down to wear as more of a bloomer style.
The lace covered items are more fragile. They can snag on surfaces so please wear with care. Also wash with care. Suggestion is to hand wash or wash inside out on low/delicate and hang try. If you don't they can snag/fray/etc.