I've noticed something when switching mediums. Sometimes when you switch mediums it becomes so overwhelming you forget the basics, because you naturally become so focused on how to handle the medium instead. One of my mother's friends has been painting in water colors for 30 years and was very good. She understood the basics such as value and composition etc. When she switched to oils, its like she forgot all that stuff and I really think it is it just that fact that the handling of the two mediums is so different it freaked her out.
So if that is your issue, limit your pallet more and paint something simpler. Even a still life of simple objects like a box and maybe an egg with some simple directional light. In addition, limit your pallet to white, brown and blue. This will feel more like drawing and maybe be less overwhelming. As you get more comfortable introduce more colors and/or more complex subjects.
@Julianna: The above video shows why if you really want to be a good painter, I think you have to get your mileage in drawing from life. In fact a lot of people should focus exclusively on drawing, and when I say drawing I don't imply just linear drawing. Lots of charcoal drawing, and ink wash drawings. It really helps you understand value and how light interacts. Otherwise all you will really be skilled at is copying photos, which there is nothing wrong with but if you want to transcend that I think you have to put a lot of hours into life drawing.
Good rendering, but I think part of your problem is the background. The figures (and everything in the forefront) looks to be sitting in front of a backdrop (but not a good photo backdrop). the background seems to be more of an afterthought rather then well thought out like everything else in the painting. I understand that perhaps the photo may have been taken outdoors in front of some bushes. The depth of field caused it to be blurry. This is where you have to do some possible deviation from the photo. This is just a guess though because I don't really know if you used a photo or what the photo looked like.