Creating a fresh flower wedding bouquet isn't as hard as you imagine. I have tutorials for all the basic shapes, including round, standard cascade, hand tied, mock hand ties and now a crescent.
Keep in mind you don't have to use just roses - you can substitute a mixture of lilies, carnations, freesia, chrysanthemums, callas and more. Let your own wedding color scheme and imagination be your guide.
Here is the basic products needed for this bouquet as shown: