https://gamesartist.co.uk/mailbox/
3D Artist Hakob Patrikyan breaks down the creation of a realistic Mailbox. In this article, Hakob discusses the project's goals, reference gathering, blockout, high & low poly modelling in 3DS Max and Mudbox, UV mapping, baking, texturing in Substance Painter & final rendering process in Marmoset.
https://www.artstation.com/hakobpatrikyan
https://www.artstation.com/artwork/elO1BX