Help please
Overlapping? Perspective? Color to show depth?

The first one shows overlapping, The third shows perspective, and the second is color to show depth.

Explanation:

hope this helps

that looks really beautiful!

Explanation:

it is just wonderful! I love it! I don't think you need to change much! But let an expert in art tell you what I don't know. :)

i got this answer from a really friend, and it was right.

hope this you like it me and a special to that dude!

artists need to create a realistic interpretation so that people in general can relate to the artwork. for a common people, an artist's impression gets increased only if he can create something which would look realistic. an abstract is difficult for a common people to understand whereas if a person can draw a girl with simple pencil sketch and if that looks like a real figure then the latter will be praised more than the former.