I dont want to come off the wrong way, so take this as a way to improve your photo's, I just dont want to sound to harsh, as I see your just beginning in retouching.
First off, the blue background looks very fake, to be honest the original looks the best, the other two backgrounds scream retouched. (more on the blured background in a sec)
The retouch:
Good job on the baby's reflection spots, removing the date stamp and brightening the yellow shirt.
The face is a mess, the details is blurred away to the point of it looking muddy. The color correction makes him look like he's beet red, you will probably need to calibrate your monitor, what looks good on there now can look a lot different on a calibrated screen. Also when the color correction was made the uneven skin tone was magnified making the skin look very blotchy. Try the tutorial in the link below to see if you can get the skintones closer and dont worry about bluring the skin, its looks better left alone...later on when you learn more advanced techniques you can get it looking perfect if you want. If the skin is still blotchy an easier fix would be to feather the selection and then adjust just that patch separately, like in the tutorial only its just affecting the one spot.
http://www.smugmug.com/help/skin-tone
The blurred background looks pretty bad. Understanding some photography fundamentals will help here, when a background is blurred out of focus its not in a linear fashion such as above...the things further away are blurred more than objects that are closer, if the lens aperture was shallow enough to blur the couch that much then parts of his chest and forehead would be blurred as well, but since the couch is further than his should the couch would be still blurier than the shoulder. This article can explain it far better than I can, you can google aperture and depth of field for some more info, this was the first one I pulled up...
http://www.cambridgeincolour.com/tut...h-of-field.htm
Read over these and try again, and post your results...retouching can be tedious but I find it very rewarding... don't give up