Some sharing of tutorials in AI and PSD ( :

Beautiful flower patterns. 

Below is the URL that i got the tutorial from:
http://www.bittbox.com/freebies/30-illustrator-pattern-brushes-for-making-flowers-and-circular-designs

 Just a simply steps and you can easily achieve the effects shown above.

Document Raster Effect Setting

URL :
http://www.bittbox.com/illustrator/ask-bb-illustrator-document-raster-effects-settings

Circular Design Technique

URL:
http://www.bittbox.com/illustrator/complex-circular-design-techniques

I made this by myself following the instruction from the tutorial.Lets try this out,its interesting( :

URL:
Tutorial from http://vector.tutsplus.com/tutorials/text-effects/creating-an-environmentally-friendly-green-type-treatment/