first I watched a tutorial or two on youtube
first, you need to make sure leaves are trimmed, otherwise your bouquet will be quite bulky, and not in a good way.
then, I took a rose in my hand, placing each other rose in a clockwise direction around the first.
when I was finished I used cable ties to secure it all together. (you're supposed to use rubberbands, but I just thought the cable ties would be much stronger)
then my bridesmaid wound the ribbon around and placed pins to keep it in place.
this is one of the tutorials that really helped me. http://www.youtube.com/watch?v=gNc5-axfhAo