Creating a Vignette Effect

I wanted to create a vignette like effect for a clip I have which is of the house as the car approaches the driveway. I thought creating this effect would take the focus from the car and more on the house. The vignette effect creates a border that fades in from the edges so that the attention is drawn to a particular part of the image/clip such as the house. Below is an image of the raw clip with nothing applied to it.

This is the kind of effect I was going where the deer is the focus of the image, it keeps the viewers eyes on that part of the image. 

To begin creating this vignette effect I created a "black video" (New Item > Black Video) which creates as the name says a black video, I placed this on the video layer on top of the scene in the length of the video. I could continue and feather this and create a vignette but it would be square and I didn't want this so I came across a video effect with the name "circle" and applied this to the black video (I have not made any changes to the actual clip) which created a circle out of the black square previously. At this stage it had a small circle which was black and the rest was of the scene, this was opposite to what I wanted but I inverted the circle. The circle was really small so I changed the radius of the circle, I did it enough to hide the trees from the frame and the car. You may notice that the circle is not exactly in the centre either, I wanted to hide the car from the scene, I tried to fit it to the shape of the house also. I then feathered the edges which made the circle less sharp and was more faded. 

This was when I applied no feather to the inverted circle. 

This is like the after when I changed the feather settings as in the other one no feather was applied to it. As I like the look of this I may do a similar effect to another part of my trailer.