I rarely provide feedback, mostly because I doubt that I am qualified. So, of course, here goes. First thoughts -- with people it is great to see their eyes (and they need to be in focus), the background is bright and immediately drew my eye away from the people. So, try to darken the background and lighten the subject and try to reveal their eyes and expose a catch light (that little reflection of light is a persons eye).
All in all, great subjects and shot. Hope this helped some.
I like the natural expressings on the faces of these two young people. There is obviously a closeness between them and you depict that very well.
The entire image seems a bit soft. This could be a focus thing or a shutter speed too slow. It could also be a lack of post processing sharpening which most digital images need.
The bright sky background is disconcerting to me. This could be corrected a bit in post processing but, the easiest way would have been to prevent it when the image was shot.
Stepping a few steps to your left "might" have had the tree/bush in the background. However, this might have been a grab image which you shot because of the expressons on the faces of your subjects.
I almost always use fill flash when I am shooting people outdoors. Shooting with fill flash might also have evened the exposure of your subjects with that of the sky, so that there would not have been a great burned out sky area. I demand high speed sync capability in my flash units so that I am not forced to shoot at 1/250 second or slower.
Welcome to the CiC forums from me, great to have you upto 7 posts already
I notice that you only posted a small thumbnail, there's a second stage to this that results in a bigger picture - and a bigger picture is likely to attract more replies.
Part 2: How to make an attached thumbnail appear larger and inline
Click the image to make it bigger
Right-click on the image and select "Copy Image Location" (in Firefox) or "Copy Shortcut" (in IE)
Click "Edit Post" and position the cursor where you want the image to appear, then use the "Insert Image" icon and Paste (Ctrl+V) the shortcut into the dialog and click "OK"
Click "Save Changes" button.
(if you attached more than one image, repeat steps 1-3 for each to get the bigger images inline)
Sometimes; when you do Part 2 step 1, it goes to the image, so you may need to use your browser's "Back" button between steps 2 and 3.
Rchard has covered things well, so I won't suggest anything else.