These are all by Free People, http://www.freepeople.com . They are one of my favorite clothing companies. By the way, you can't see the back in this picture, but as an added bonus, this top even has a hoodie!
Another fun one from Free People is this fringy, light sweater:
This casual little dress:
...and this cascading maxi skirt:
Well, this has been a quick glimpse into Free People. To find their things, they have their website and a few stores, including one in Los Angeles. They also carry some of their styles in Nordstroms stores.