Are you wanting to post a picture of YOUR puppy neuter incision that you are worried about, but do not know HOW...?
Or do you actually want to pull up pictures/images of dog neuter incisions? If so then google: Dog neuter incision+images
Here is one helpful site.
http://petsinstitches.com/postop.htm
Click on the appropriate video. (They do have post operative images of stitches (& good and bad neuters). If your dog has dissolvable sutures, that may be why they appear loose. Were you told you would need to come back in for suture removable? If not then they are dissolvable, but if you have any questions or concerns you should contact YOUR VET.