"poco de belleza" would mean "a little bit of beauty". "La guerra tiene poco de belleza" would mean "war has little beauty". If you mean "a small attractive girl", then it would be "belleza pequeña".
Treasure is tesoro in Spanish. wordreference.com
The Spanish word for 'little piggy' is 'cochinito'.
'petit trésor'
treasure = tresoro (tre-sor-ro)
Tesoro - Spanish for treasure
poco
'Your little sister' in spanish is written and pronounced 'Tu hermana pequena'.
perrito
un poco
Campanilla
Poquito or poco.
Besitos