Painted effect

How do I make a similary effect with my own pictures like these eg.

they both got a painted look how have done it

http://www.bfgeeks.dk/?page=vietnam

and

http://www.eagames.com/official/battlefield/vietnam/us/home.jsp

They were most likely hand drawn by a skilled artist, either with a wacom tablet directly onto the computer or scanned in.

There are plenty of artistic filters in Photoshop you can play around with to get a similar (but not-quite) effect.

Filters > Artistic > whatever filter you want

Try those out and see how you like it, don't forget to adjust the sliders to customize the filter.

I know the first link is made by an computer without drawing. He have used som pictures and make some effect. But i think your right with the second link.