Looks good to me. Maybe you can keep the leggy plants and fill the empty spaces that will not go leggy but in rosette forms. Baby topsy turvy comes to mind or any existing collection you have that grows low.
Ive you can always tip the bowl up sideways and place something under it to hold it up...the plants won't mind and you won't have to worry about "drainage"
I posted this arrangment on David of Delands thread but thought it could be enjoyed here too.
I found the soldier when DD cleaned the gutters,probably former neighbors.
The arrangement is supposed to depict the soldier amidst exploding bombs.
I am an Amazon type woman and never went in for teeeeeeny things. I dont have collections of mini stuff. I do remember unearthing a small soldier in the garden that is by the deck and If I run into him again I will keep him.