Free PSD download

https://365psd.com/download/paper-bird-icon-origami-symbolic-vector-illustration-56625

Photoshop Actions

https://www.freepresets.com/product/free-photoshop-action-film-look/

photoshop brushes

http://www.brusheezy.com/

Photoshop Effect: Turning photo to sketch

http://venomx3d.blogspot.in/2012/07/turn-your-photos-into-sketches-with.html

http://www.deke.com/content/deke%E2%80%99s-techniques-016-turning-a-photo-ink-drawing

http://abduzeedo.com/money-style-illustration-photoshop

https://helpx.adobe.com/photoshop/how-to/turn-photo-into-painting.html


http://abduzeedo.com/super-cool-watercolor-effect-10-steps-photoshop