It'd be too confusing: Touhou has the likes of Flandre or Nue at extra stage, and Minoriko or Letty at 1st.
To put it bluntly: bigger boobs equals higher difficuly. Nothing to do with actual level placement. Your Flandre or Nue has "easy"(flat) boobs; Minoriko or Letty, as artists often portray, has "Hard" or "Lunatic"(C or D cups, I'm not good with american measurements) boobs. Yukari, Yuyuko and Yuugi are officially cosidered having "Phantasms". Hope you get the idea.
Lately I'm feeling that my talking is hard to understand for people around despite being rather straightforward without any euphemisms and often ending up explaining stuff in depth. Am I speaking too ambiguously?
They pretty much are, albeit generally by stage order. Stage 5 bosses have a track record of being pretty big.
Sakuya - Disputable Youmu - Generally small or flat Reisen - Medium Sanae - Medium or Large Rin - Medium Shou - Disputable (usually Medium) Futo - Small or Flat Seija - Small or Flat Clownpiece - Small or Flat.
It's actually not that that consistent.
Stage 3 bosses are more consistent:
Hong Meiling - Medium to Large Alice Margatroid - Medium Kamishirasawa Keine - Medium to Large Kawashiro Nitori - Small to Medium Hoshiguma Yuugi - Large to BOING Kumoi Ichirin - Medium Miyako Yoshika - Small to Medium Imaizumi Kagerou - Medium to Large Doremy Sweet - Small to Medium.
Sakuya - Disputable Youmu - Generally small or flat Reisen - Medium Sanae - Medium or Large Rin - Medium Shou - Disputable (usually Medium) Futo - Small or Flat Seija - Small or Flat Clownpiece - Small or Flat.
It's actually not that that consistent.
Stage 3 bosses are more consistent:
Hong Meiling - Medium to Large Alice Margatroid - Medium Kamishirasawa Keine - Medium to Large Kawashiro Nitori - Small to Medium Hoshiguma Yuugi - Large to BOING Kumoi Ichirin - Medium Miyako Yoshika - Small to Medium Imaizumi Kagerou - Medium to Large Doremy Sweet - Small to Medium.
In what world are Yoshika, Doremy, and Shou NOT tittymonsters? Reisen and Sanae are pretty much always large to huge in my experience as well.