ok i had seen some1 doing something that looked like a dotted shadow and first i didnt know how to do that but i found it out and made a tut and i dont know if other people made tuts about this but anyway just read the tut

If you dont have a dotted pattern yet follow these steps:

- create a new file -> 5x5 transparent

- zoom in till u cant go anymore

- now get the pencil tool and set it to 1px

- draw a dot in the middle

- now go to edit > define pattern and call it dots or whatever

- ok you can close the file now

now for the actual tut open up an image u want to add a shadow to (i
would suggest a cut out image like mine)

now hold ctrl and click the layer

when its still selected make a new layer and movie the selected part where u want it

now right click on it and select fill now use the dot pattern and click ok ( u can deselect now)

now place the pattern filled layer under the actual image

and you are done

here are my results:


it can also be filled with other patterns


ofcourse u can fill it with black too and lower the opacity and maybe add a guassian blur