Here's another nozzle comparison test with .2, .4, .6 and .8mm nozzle sizes for a 4cm x 2cm bulbasaur test. In my opinion I'd go with .4mm nozzle for small items like this and 0.6mm for medium sized objects and only .8mm for large items or geometric items where detail isn't important. .2 was more detailed but took almost 3 times as long as the .4mm nozzle and wasn't quite that much better to make it worth it.
