Alter 3D illustrations - Explore a whole new world of 3D characters living in 2D illustrated backgrounds, this is a totally new style that is aiming to reduce the gap between 3D and flat design to create a better immersive design in websites and apps.

Isometrica - 3D illustration constructor with 380+ isometric objects

Space 3d illustration - Awesome set of 3d illustrations with cosmic characters and different objects.

Characterz - Biggest diverse mix and match 3D illustration library

Mesh - Slackoverflow wrapped in a social network

H A N D Z - Free 3D illustrations of diverse hands gestures