Nifty fifty

For ages I have really wanted a nifty fifty mm lens for portraits. 
Well while shopping on line yesterday I found a Yongnuo 50mm F1.8 for under £50!! I read the numerous reviews and they were all really positive so very naughtily I pressed 'Buy'.
Well, it arrived very swiftly today and despite being made of plastic it performs really well. 
This shot of Percy pusskins (he was the only willing volunteer), taken in natural light really pleased me, what do you think?