Here is my honest opinion:
They are good
Explanation:
The pictures are kind of pixilated I think that if you took the pictures with a better camera I could explain more. I definatley think that your art is good, do you take classes?
music don't make your heart calm it is just giving you what a human mind want that is not usually a some nice thing to want.
Answer:
4 beats
Explanation:
a sixteenth note is 1/4 of a quarter note so its 1/4 of a beat
a eighth note is half of a quarter note it is 1/2 a beat
a quarter note is 1/4 of a whole note so its a quarter note
a half note is half of a quarter not=2 beats