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?
Answer:
Ah so cute I love it! I would put the heart (on their hands) above their hands and make it a tiny bit smaller, That way you can see them holding hands, I also think it would look a little bit nicer. Maybe a little bit softer strokes for the hair. Good job:)
Explanation:
Maybe you should try to rub it with acetone?