High School student Kyle Kauffman is a recent CRYENGINE user who has achieved impressive work in very short time.
Kyle Kauffman goes by 'kyle98' on the forums and started working on his Mountain only a couple of months ago. This is one of the first iterations of his map when he was just learning CRYENGINE:
He started using CRYENGINE in spring 2015, but it's worth mentioning he's also attending high school while learning game design and modelling on his spare time.
Being a student and having limited time, he was concerned about not being able to work on his projects in his spare time, but in his words: "with such a great community, it was not too difficult to get a grasp on the engine". He uses Blender and is currently setting up the TOD and replacing all the vegetation with his custom models.