I suppose there are either some misspelt words or my Turkish is too bad to handle the translation Here's my try:

yeah the picture (photo) is nice but it's size is big (buyuk or bukuk?)

can we translate this way as well ?

ok, the picture is nice but looks humble

thanks in advance

"Boynu bükük", literally means "holding his had down". To tell the meaning I will give an example.

Assuming there are a few kids and somebody comes and gives candies to everybody but one. All the kids are very happy but the one who didnt get any candies is almost like crying. Nobody cares for him.

When "boynu bükük" is used, people tend to feel pity for what it is used for. You feel like saying "Oh my little poor thing.".