Oils? Hmmmm....it is tough to see but from here it looks like you didn't use enough paint on the shirt and in the background.
At least in the bottom layer(s), your paint should be thick, buttery and really cover the canvas...just like a large and overgenerous glob of mayonaise covering a slice of bread.
Another clue that you don't have enough paint on your brush is that your brush makes a lot of scrubbing sounds. I had a teacher once who insisted that we all "paint with a quiet brush." (This means you must use a lot of paint).
A lot of beginners don't put enough paint on their palette because they are afraid to "waste" it. However there is no need to fear this as there is a dandy post on this forum that deals with saving paint.
http://forum.portraitartist.com/show...save+and+paint