If your angel eyes are a "warm" yellowish color that doesn't have a very bright harsh look...then they are the original AEs. If they are whitish/bluish and have a very bright & cooler look...then they are aftermarket LEDs.
Also, if you go back to realoem.com ...look to see if there is an little image icon at the far right of #14...if it is, click on it and a small image will appear...and if you click on the small image...you can enlarge it to where it should fill your screen...which will also help to verify that you're looking at the correct part.
The bulb for the AEs is #14 in the diagram you posted: BMW part #