I kinda derailed wrroca's thread. sorry wrroca forgot what the first post was about.
So back on topic how to add the web over the specific area.
I'm not an expert at tutorials. and again there may be a better way to do this method.
but this is how I do it.
Im at my work so I didn't have my files or patterns so I used wrroca Image from the first post for this example.
1. Select the magic wand tool and click on the red. press ctrl c, then ctrl v
2. with the magic wand still selected click the blue on suit layer. press ctrl c, then ctrl v
Now you should see two new layers label one blue the other red.
3. Create a new layer, select the fill tool, I picked a gray color. fill the whole layer. name that layer brick (or what ever you want to call the pattern)
4. Right click that layer go to pattern overlay. select the pattern you want to use. click ok.
5. Create a new layer under the blue brick layer that we just made.
6. select the blue brick layer and press ctrl E once to merger the two layers.
7. Depending on your pattern determines the next step. I needed the patern to be rotated to get the points facing verticle.
Press M , right click the image , select free transform. rotate till it is correct.
8. make sure your pattern is above the blue layer , press and hold alt and left click in between the two layers. ( that makes it so you can adjust the brick image anyway you want but it will stay inside the color layer.
9. Select the eraser tool with the star on it. go the the image and left click on the white inside of the pattern. ( this removes all the white from the image
leaving only the pattern. )
10. change the layer to multiply
11. right click on the layer, press blending options, a window will pop up, play around with the settings you like. but below are the ones i used for this tutorial.
Drop shadow, Bevel and emboss, stroke
Thanks hope this helps