First thought with your criteria (which I 100% agree) is:
Mosaic [name_f]Elle[/name_f]- So chic!
Mosaic [name_f]Prue[/name_f], Mosaic [name_f]Bette[/name_f], Mosaic [name_f]Nell[/name_f], Mosaic [name_f]Neve[/name_f], Mosaic [name_u]Sloane[/name_u], Mosaic [name_f]Ree[/name_f], Mosaic [name_f]Madge[/name_f], Mosaic [name_u]Blair[/name_u]
So that it doesn’t seem like an art piece or filler, you might consider venturing toward names that are usually used in the first name position, maybe even two syllables but short (like 4-5 letters).
Mosaic [name_f]Chara[/name_f], Mosaic [name_f]Enid[/name_f], Mosaic [name_f]Lura[/name_f], Mosaic [name_f]Larue[/name_f], Mosaic [name_f]Rena[/name_f], Mosaic [name_f]Helen[/name_f], Mosaic [name_f]Ouida[/name_f], Mosaic [name_f]Lia[/name_f], Mosaic [name_u]Darby[/name_u]
[name_u]Or[/name_u] an obscure surname (to make it seem more sensible, maybe look for one with a good meaning)
Mosaic [name_m]Ames[/name_m]- a friend, beloved
Mosaic [name_u]Afton[/name_u]- afternoon, evening
Mosaic [name_u]Greer[/name_u]- watchful, swift, alert
Mosaic Andry, [name_u]Windsor[/name_u], [name_u]Brennan[/name_u], [name_u]Tanner[/name_u], [name_u]Lawson[/name_u], [name_u]Lowry[/name_u]