Sure, you can achieve those effects with ArtRage. What you'll want to do is create a new layer, over the rest of your layers. Then, click that layers layer menu tab and select Blend Mode (do not confuse this option with the "Bump Blend Mode"). On the Blend Mode menu, you'll find a number of options to choose from, that will all change how any paint put on that layer will appear over the rest your image. Based on what you're attempting to do, I'd say your best options for following along with those tutorials would be the "Overlay" or "Linear Dodge" options (I like using Linear Dodge, because it allows you apply lighter brights, while also allowing you to erase back with the various tools by using greys and black).
If I get the chance, I'll make a quick demonstration video of this later on.
Last edited by Someonesane; 07-20-2015 at 01:56 AM.
Nothing is easy to the unwilling.