3D realistic looking rubik's cube in Gimp (with video)

Today I'm going to show you how to make a 3-dimensional pretty good looking rubik's cube. The steps should be easy to understand. I've also made a little video which is situated right on the bottom of the article so you can watch it.

1) Open Gimp with a new image 300x300px (white background is ok).
2) Fill the background with a checkboard pattern (Filters / Render / Pattern / Checkboard). Size 100px.
You should get something like this:



3) Now we will make a grid. Go to Filters / Edge-Detect / Edge
Algorithm: Sobel
Amount: 2
Smear



4) Invert the colors (Colors / Invert)

5) Now we have a black grid on a white background and we want to make a border around the image.
Go to Image / Canvas size. (304x304px)

6) Select the Move tool (M on keyboard) and center the image. If you are able to handle this step with a mouse than ok, but I used arrows on my keyboard, twice right and twice down.

7) Now create a new layer. Select Bucket fill tool (Shift+B), Select all image (Ctrl+A) and fill the image with black. Than move this new black layer down and deselect all (Ctrl+Shift+A). You should get this result:



8) Now fill the image with some random colors, i used these (green [307617], blue [173d76], red [ff0000], white [ffffff], yellow [aecb0e]). After that, merge the layer down so you get only one layer.



9) Now we are going to make a cube. (Filters / Map / Map object) Use following values, but feel free to change it :p

Options/Map to: Box
Options/Transparent background checked
Options/Enable antialiasing (default)
Light/Lightsource type: Point light
Orientation/Position (default)
Orientation/Rotation
X: 30,0
Y: 45,0
Z: 0,0

10) Voila, the cube is done, but you can continue with 3 more steps to make it better :p.

11) Go to a dialog with layers, right-click on the layer you have there (there should be only one now) and click Alhpa to selection. Than go Select, Grow (1px). Create a new layer, fill it black and move it down. Deselect all (Ctrl+Shift+A).



12) Go to Filters / Light and Shadow / Drop Shadow. (0, 0, 8, black, opacity 80)

13) Add a new layer and move it on the bottom. Create some gradient, something like this, which is the final result:



I noticed that it's a little illogical, because I have two same colors (e.g. this green-green-red) on the same piece. This situation could never happen on the real rubik's cube. Maybe someone will find the solution than let me know in comments.

And here is the video, sorry for the quality but it's pretty good on my pc, this server uses an enormous compression.