Thanks! The Trichosanthes has been blooming sporadically this year - may not be getting enough sun and can't seem to get enough food. They bloom the first year from seeds but more prolifically after a year. They are definitely zone 8 hardy so I leave them, pots and all out during winter.
Seven and 8 remind me of Youjiro, color and patterning wise but the form is different. I've tagged the 9 plant to see if it puts out more odd patterned blooms. Ten is amazing and I'm keeping my fingers crossed the plant is consistent with the blooms.