Edda's Drawings and Show Piece

I asked her what is this picture about?  She told me, on the right side is we are going out and on the left side is we are coming home.  Mmmmm.....

She said this is a picture of her sister, but the fat version.  Okay, it does look like a person with long hair.

But what about this?  She said this is a drawing about we are going out but didn't know where to go.  Great imagination huh?

She built this and asked me to take picture.

Then, she got excited and said she can make two and asked me to take picture.

Then, she kept building more so I asked her to be in the picture too.  I thought this was pretty good considering she made it closed together without it falling down.  Edda is three years and seven months old.  I would love to see her drawing before she goes to kindergarten.  Her abstract drawing now is too hard to understand.  Look at Evy's drawing before she turned three here.  I have one who draw properly from the very beginning (I'm serious ever since she started drawing, it was always proper drawing), one who draws abstract drawings only she can understand.  Why the huge contrast?