Ashe - If the 'e' is silently, then I would leave it off. I prefer it as a nick name for
Ashwin, Ashwyn,
Ashild, etc...
Constance - nice
Dorothea - Pretty with a nice vintage feel. Lots of cute potential nicknames.
Juno - Fun in a spikey way.
Juno was not the most sympathetic goddess, but I like her name and would enjoy a good revisionist take on her mythology.
Liliana - nice
Maribelle - It sounds like a glamorous cartoon cow. It isn't awful, but it feels over the top and extra.
Rowan - very handsome
Yumi - It is a cute Japanese name, but it does sound very young. I have no idea how it would be perceived by a native Japanese speaker.