I don't think that's Monica Lo playing the florist in NO COMPROMISE (see below). If it is, she was born quite a bit before 1978, 'cuz that ain't no ten-year-old.

I think someone here was guessing . . .
However, I wouldn't rule out this being the same actress in DAUGHTER OF DARKNESS, as there are similarities despite the change of clothes, hairstyle, etc, but I'm reeeeaaally skeptical.
These are the ten actors listed in the closing credits. Two Los (Money and Ken), but no Monica. Probably need to remove this film from her resume.
As to DAUGHTER OF DARKNESS, part of me wants to believe that that's really Monica Lo, though she's certainly stacked for a fifteen year old (not that that's uncommon or anything), unless of course she's older than her bios indicate.

The only thing throwing me is the lower part of the nose in those DoD shots. Otherwise, so much seems to match.
So, could the NO COMPROMISE flower girl be the DoD dead sister? Maybe not, but certainly I'm leaning to
neither of them being played by Monica Lo.
As Dennis said, curiouser and curiouser . . .