The tweezer jam mellow was my favorite of N1 but I was not there for the visuals
I think I know what the themes are but I am not certain. I think N1 is landscapes nature scenes or just flat earth and n2 is obviously water but n3 is either Fire on the Mountains or perhaps just Fire or maybe mountains and valleys and N4 is of course now still a total guess but if n3 was actually atmosphere or AIR and n1 covered all types of land then N4 cannot be air but then would either be Outer Space Aliens or maybe People or Animals again but they already did that and already did the Fire Earth Wind Water show of elements second set so who knows. Any guesses guys?