My personal preference for the bouquet is the classic round compact small bouquet. I also prefer coloured flowers as if you are wearing a white/cream dress then a matching white bouquet gets lost in the photos when you are holding the bouquet in front of you. I think it’s more beautiful to have a contrasting colour of bouquet as it adds a splash of colour to the photos. You can also be creative and use it to have a colour scheme that matches bridesmaids’ dresses or the groom ties and buttonholes.
I definitely do not like a long stemmed bouquet, they are hard to hold and unflattering as you can’t hold one in a casual manner it can only be held in a rigid and formal way. I prefer the round bouquet as when it is held in front of you at about the same height as your belly button it creates symmetry in the photos as you are holding it centrally. When you are not holding the bouquet centrally you want to be able to extend you arm and let it swing at your side in a relaxed manner like when you hold hand with the groom and go for a walk. A long bouquet cannot be held centrally and so does not give you symmetry.
A cascading bouquet can be ok as long as it is the right size for you. I have seen some huge bouquets that were stunning but the bride was just too petite for such a large bouquet so you need to watch the size.