FROSTBOX (https://www.deviantart.com/frostbox) is a real-life buddy of mine. Please have a look at his gallery. He is also - the same as me - a friend of constructive criticism. Meaning, you can be honest with your opinions on his works.
Since I can't use thumbs as a non-subscriber, you'll have to look at his gallery on your own. Sorry for that... I will ponder about subscribing again.