@betzaelcorvo there's nothing wrong about using a reference image when creating your own art as long as you add your own style and properly source your image to give credit to the author who created the source of your inspiration. Not sourcing your inspirations properly can make it look like you are deceiving your audience into thinking the idea was solely your own.

Please keep that in mind in your future posts. I'm speaking as an Ntopaz Coordinator.