The modules are not hard to fold. There are about 20 folds to do to make a module, but after you make a few, the rest will be really easy to fold.
You will need 30 modules, of 1:1 ratio paper. I cut my paper to 5 cm by 5 cm for one module. The final size of a module is approx 5 cm by 1.8 cm.
Because the paper is double-sided, it will be really easy to follow the instruction, and to gen a nice flower, leaf contrast.
Once you folded all 30 modules of them you can start to assemble the Kusudama Floret with the 5 modules with 3 modules principle.
For me the assembling was quite hard, and I almost gave up on it. But the final result is worth the rubble. Maybe if the modules are bigger the assembling is easier.