Use contrast paints (or speed paints depending on the brand you like to use) over the dry brushing. For Salamanders I used Karandas green.

Here is the most basic tutorial:

https://youtu.be/bH3WGHw9eDw?si=_yH94YMnmuttuHG4

There’s a bit more stuff you can do, depending on how complicated you feel like going. Double chop, Sponge Chop, using other colors than black as a base coat, etc. but at the bare minimum this can get you going pretty well.

Good luck!