What Breed Mix is My Dog?

I'm wondering what my dog's breed mix is. Her name is Arya :D She's 8 months old now, she wights 36 lbs/16kg, height I think is around 50cm/19.7 inches, almost 60cm/24 inches long (without the tail), her tail is around 40 cm/15 inches, medium golden hair. At the beginning we thought she was a Golden Retriever/Lab mix, but because she's too small (36lbs) we're thinking she might be not.

Here is some photos of her:
http://img38.imageshack.us/img38/2548/8den.jpg
http://img713.imageshack.us/img713/9522/fui3.jpg
http://imageshack.us/a/img89/7181/rgoc.jpg
http://imageshack.us/a/img571/7731/k8fd.jpg
http://imageshack.us/a/img841/5259/52wy.jpg
http://imageshack.us/a/img440/7158/ajbi.jpg
http://imageshack.us/a/img20/5308/z5al.jpg
http://imageshack.us/a/img547/4387/7vpo.jpg
http://imageshack.us/a/img853/1381/6see.jpg
this one when she was 4-5 months yaers old:
http://imageshack.us/a/img163/6084/ellv.jpg

By Fadi E.