Experimenting With Painting in Photoshop

I like the effect of the painting in Photoshop layered over the original image, it reminds me of this image:

http://goblinhood.deviantart.com/art/Sir-Gawain-and-the-Green-Knight-360182123

This is what the painting layer looks like not over the original:

I tried to do the same painting effect with this image but I really don't like it, it looks awful, definitely not as effective as on the Lud's Church image.