But very serious.
he/she is really pretty but crazy
Very good, but very long.
Tonight is very hot but my heart is dead
te mando muchos besos ricos
In this case I believe it means sad
"Muy bueno" means "Very good."
It is very good.
"too short"
very white
very unhappy
If you mean 'muy bien' - 'very good', or 'very well'
you are very brave