Quick Sketch Mech Design

Quick Sketch - Mech Design (one of the brushes i used, available for download)
https://www.deviantart.com/benedickbana/art/New-Brushes-For-Download-2019-819702306?fbclid=IwAR0jClPRyAeL4yGEa0PG_zL8Ftw0da9TdmjxzbG8RlJlhU_wJKnHNvyn-Ok