1) Take a portrait shot (or whatever you want to use) and open it in Photoshop (mine is 1300 x 1300 pixels).

2) Click "Select/All" then click "Edit/Copy".

3) Click "File/New" and in the new window that opens where it says "Background Contents" change it if necessary to "Transparent" and click "OK", a new window will open the same size as your picture, now click "Edit/Paste".

4) Now select the eraser tool from the toolbar and start to "rub out" the background (Hint: You can click "View/Fit on Screen" to make the picture bigger, then its easier to see what to rub out, then "View/Actual Pixels to return.| Another tip is you can make the eraser bigger or smaller using the 2 bracket keys next to the letter "P")

In the first image above, the eraser tool is shown highlighted, the image next to it has the eraser being used on it, the image below is complete with background removed.

5) So now you should have a picture like this.

6) Now go to your layer palette and change the layer blend mode to "Multiply". Next click "Image/Adjustments/Channel Mixer and in the new window put a tick in the "Monochrome" box and if necessary adjust the sliders to get a image with nice contrast, click OK.

7) Now go to "Filter//Sketch/Stamp" and play with the two sliders in there to get a similar result to this.

8) Okay, we have the basic image to work with, now lets take it a step further and organise ourselves for the next steps.

9) We need to make a new group, and put the above layer in it and then add 2 new layers, to do that go to the bottom of the layers palette and click on the small icon that looks like a folder (when your mouse hovers over it it will say "Create a new group" Then click on the "Create a new layer" icon twice, two new layers will be made "inside" this new group. Like this

10) Now drag the sketch layer into the new set and position it above layer 3. And change the layer blend mode back from "Multiply" to "Normal"

11) Open the "Colour Picker" dialog box and choose red.

12) Now select the layer at the bottom, and then select the "Paint Bucket tool" and click on the picture to fill it with red.

13) Now select the black layer.. From the menu bar at the top click Select/Colour Range and when that box opens move your mouse cursor to the picture and click on any of the solid white colour and then click OK.

14) Now select the remaining empty layer in the layer palette and then go to "Edit/Fill" and fill with a contrasting colour, I've used a yellowy colour, Then go back to the layer palette and move this layer above the black one. Now click "Select/Deselect".

15) We are almost done now!! Lets set ourselves up for this last part now. Click on "View" and see if there is a tick next to "Snap", if there is not then click on "Snap" to put one there. Now go to "Image/Canvas Size", change both of the dropdown boxes to "percent" and type in "100" in both boxes alongside these, make sure there is a tick in "Relative" and click okay. Your canvas or picture area is now 4 times the size and we are going to duplicate the picture you just made so its there .... four times!

16) In your layer palette there is a small triangle next to the folder where it says "Group1", clicking this triangle will either expand or collapse it so you can view the contents or hide them whilst you work elsewhere in the layer palette, click this triangle now to reduce the group as in the picture on the right below.

17) Now right click this group and click on "Duplicate Group", do this a total of three times to give you four groups in total.

18) Remember we turned "Snap" on and resized our canvas ? Click any of the groups to highlight it then click on your image using the "Move Tool" (shown below). Now drag the image towards a corner of the canvas, if you do it slow enough when its getting close it will "Snap" to the edges . Select another group and do the same and so on until you have the canvas covered with four of the images.

19) As a final thing and for your preferences, one by one expand on a group (using the small triangle next to the group) and edit the colours to your liking so that each group is different. Leave the black layer as it is but edit the red and yellow one if you want, the best way to do this is by holding down the "Ctrl" key on your keyboard and clicking on the image that's on the layer in your layer palette, this selects that part of the image itself and no other part. Now click on "Edit/Fill" and when that box opens click the contents dropdown box and select "colour", select your colour, click "OK" and "OK" again and that part of the image is now done. When you have done all of that you could end up with something like this.

Move over Andy Warhol!!!!