I really like the DOF and bokeh of the first two, the warm colours are great too. I just feel, if you had gone in a bit closer to just one branch or leaf (even closer than in 4 and 5) the compositions would be stronger and the images less busy.
Ute
1,3, and 4 for me. I like these shots and love Japanese maples. Maybe try to get a shot with a more contrasty background color for those shots with great bokeh.