Creating an animated tattoo effect on a girl's bareback

Start by opening an image of a girl with bareback.

Insert a ornament graphic, dragon graphic or a flower pattern, whatever you wish to animate.

Scale down and place as shown.

Change the layer mode to "Soft Light".

Duplicate the layer several times and place as shown to cover the whole back.

Adjust the image or erase the edges using soft brush settings. Merge both the background layers.

Select and merge all the tattoo layers. Create several duplicates of the resulting layer. In one of the duplicate erase all the pattern except a little beginning.

In next duplicate erase all but show a little more than previous layer.

Repeat the steps with other duplicates. The idea is to show more and more in each duplicate layer.

Open animation window. For the first frame hide all the duplicate layer except the first one.

Duplicate frame. Hide the first layer and unhide the second tattoo layer.

Keep duplicating frame. Hide the previous layer and unhide the next tattoo layer.

Once you completely show the pattern, duplicate more frames but reverse the sequence by hiding more and more with each duplicate frame.

Press Ctrl+Alt+Shift+S to save an optimized animated GIF.