Sun is Shinin' and I Feel Good...

Loving our sunny Spring weather. We have a picnic on the beach planned for lunch so here's a picnic perfect outfit. Could some of my lovely American readers help me out please...what is Forever21, is it a cheap highstreet chain? It seems to have some amazing clothes with pocket friendly prices, hope I will come across one in San Francisco :)

Forever21.com - Dresses - Casual - 2073452868, $30
Forever21.com - Shoes - Casual - 2074956363, $23
1950s Vintage Purse - 50s -No Label- Womens brown and latigo tan..., $44
Angel Wings Earrings, 8 GBP
AM Eyewear 'Jamo' sunglasses, 150 GBP