A few years ago, I found a terrific site on the internet: www.german-gymnastics.de. You can watch tons of videos, which show the development of german gymnasts over the years. There are junior gymnasts (born 2000-1994), senior gymnasts (born after 1994), retired gymnasts and a few international juniors.
Routines from the Pre-Olympic-Youth-Cup, the German Championships (junior, senior & the younger ages) or the German Bundesliga can be downloaded (it takes some minutes – but it´s worth it).
My absolutely favourite floor exercises is the routine of Pia Tolle (German Juniors – Jg. 1994 – Deutsche Jugendmeisterschaften 2007 – EF: Fx).