Well...i decided to make a Medium-Hard tutorial :shifty: , lets see who is noob and who isnt xD. Nah, but this tutorial, its very detailed so, i think all the members weill be able to do it well.
Well in this tutorial i will explain how to make an abstract brush, the asbtract brushes are very easy to make and simple, but his one its not simple xD it got lots of details, so...lets begin!
1. Make a new document, 350*350, and fill it with black.

2. Now make a new layer, select the brush tool and select the first brush, and chage the size to 4

3. Now make something like this

It shouldn't be perfect
4. Now, lets make it look cool, let erase the ending of each line, so, select the eraser tool, and change the opacity to 30% and the size to 5

You should have something like this

Now it dont look so good, so, lets make it look better adding a greadient overlay.
Right click on this layer > blending options > gradient overlay, and apply this settings

Now it looks good :D

5. Now, lets make a light down the abtract, make a new layer, select the brush tool, and select this brush

Change the opacity to 65%

You should have something like this