The artist I found on This is Colossal is Mattias Adolfsson. While that last name sounds worrying, his incredibly detailed and complicated sketches are amazing to look at. They have so much creativity to them and a cartoony art style (that is always a plus to me). I hope I can someday draw half as good as him. He has a shop and the post on This is Colossal.
Shop:http://mattiasshop.blogspot.com/
ThisisColossal:http://www.thisiscolossal.com/2014/09/mattias-adolfssons-manically-detailed-sketches-and-doodles/
Shop:http://mattiasshop.blogspot.com/
ThisisColossal:http://www.thisiscolossal.com/2014/09/mattias-adolfssons-manically-detailed-sketches-and-doodles/