Does anyone else get a headache just thinking about the flower decorations?

I need help. I literally get a headache every time I even think about the wedding flowers. I thought this would be one of the more fun things to plan. Does anyone have pictures of what a bouquet of yellow asiatic Lillie's would look like, or any ides on other all yellow bouquets for bridesmaids? Also need help with ceremony decorations. Would it be ok to keep it simple just rose pedals or what else can I do? Also need help on boutonnieres for groomsmen and groom.Thanks in advanced :)