Something along the lines of "lovely and beautiful."
you are beautiful
eres hermosa y linda
In Spanish, linda means pretty, or lovely (or, more rarely, beautiful, which is hermosa).
Very beautiful and sensual
"You are beautiful and I love your lips."
That would translate over to: "Mujer hermosa"
Tu Bella! or Tu hermosa! beautiful= hermosa Bella linda
sobrina linda/hermosa/bella
reina linda/hermosa
mujer/dama hermosa/linda
Good night and sweet dreams.
Usted es/tu eres (formal/informal) bonita/hermosa/linda = You're (you are) beautiful (assuming 'you' is female; if not, change final 'a' to 'o') 'Your beautiful (e.g. girlfriend)' = Tu (novia) bonita/hermosa/linda