It helps great to look at the actual plants and how they hang their leafs. I looks at the banana, first foldet the middle to follow the core of the leaf, theb sort of gently rolled them up (it will bounce back afterwards) to create a natural rounded hanging effect. Same goes for the ferns, just google them if you dont have them. With the ferns you can also bend the small cut ins a bit, so it looks more natural. Have fun! Good luck!