While watching my little girls play outside I decided to mess around with my macro focus rings a bit on my 50 1.8.   
I give you, Dandelions. 
http://i47.photobucket.com/albums/f185/EWhytsell/Flowers/IMG_1969_zps7bbe34e4.jpg   
http://i47.photobucket.com/albums/f185/EWhytsell/Flowers/IMG_1965s_zps3cf83ff5.jpg   
http://i47.photobucket.com/albums/f185/EWhytsell/Flowers/IMG_1964_zpsa6e63869.jpg   
I never looked that closely at these flowers, the seeds are really cool. As for macro photography, I've never really done much with it since most of my gear is for astrophotography, weddings, and landscapes. I found composition could easily be a tricky thing to accomplish due to the fine angles involved.