Dorothee Vogel is a Swiss-born designer. Take a look at her website here to see some of her work- the website is in German, but you can always Google Dorothee Vogel and press the translate button next to her website link. (It doesn't do too great of a job translating, but hey, it's still English!)
These dresses are bright and bold. Vogel uses eye-catching colors and splatter designs in her Summer 2008 collection. You could definitely wear her clothing to a special event or just about anywhere. I think this first dress is adorable- the pattern is very interesting.