Hi :) I've started texture painting last week, as I love the stylized look it gives to most asset (also, I found the process surprisingly relaxing). Here's my first production, trying to make a stylized rock: Inspectable sketchfab model: https://skfb.ly/6RQ6n Thanks in advance for your comment :) !
Looks good! I would suggest the use of more gradients. You can use it to simulate a stylized ambient occlusion. You can also add some baked lighting to give it more depth.