I agree with Sergio about the background in this image. With wheat fields, maybe an out of focus barn or tractor way in the background would be better. Just a suggestion. In most good photos, you will see that the photographer only included things in a photo that were important to him or her. Keep unneeded items or distractions out of your photos by changing the angle of your viewpoint to hide them from view. Concentrate on the part of the image that is most important, then look at the right and to the left, the top and bottom corners to see if there are things that you may not want there. It is very easy to concentrate so hard on the subject and not notice other items off to the side that you do not wish to be there.
If you are taking a photo of a wheat field, you can take a photo of the entire wheat field, or do a close up photo of a single wheat stalk. You are the photographer, so you are the one to decide those things. Keep shooting Sajjad, it gets more and more fun as you develop a style of your own. Best to you, Randy
Thanks for your comments about my last photo. I'll try to comment about your work but my english is very poor and I'll be limited in what can I say.
This is my favourite of your exposed photos here. The selective DOF is very good and make the photo be interesting, but in my opinion, the background break the composition and make my eyes to move there. Good work.