peony buds by Petal Sweet — Sugar Flower Bouquets. All kinds of tutorials for gumpaste flowers. Use this site
box2-1 by dkdesigns, via Flickr
DIY Paper Flower Craft
color charts...awesome help to find the right color for your fondant/icing.
Gumpaste (fondant, polymer clay) azalea flower making tutorial - Cake Decorating Tutorials (How To's)
awesome gumpaste hibiscus tutorial
Orchid by Eline (Phaleanopsis) (this is in Dutch, but google can translate for you pretty well)