Finally, I managed to finish this tutorial! It took me a while to edit and record everything, but I learned a LOT during the process.
Like I mention in the video, even if you don't use ArtRage, I personally find it helpful to look at the workflow and brushes of other artists - I learned a lot from watching WLOPs tutorials, even though I don't use Photoshop like he does.
So, I really hope you'll find this helpful! Let me know if you want to see more tutorials / videos like this one. :)