1. draw a simple white solid shape on a black background
in your paint program save it as a bmp (suggest 500 pixels wide by a 1000 high)
2. inflate it in curvy( mesh scale set to 0.1 , auto ,smooth ,mirror)
3. select model and load a base colour pattern( the choice of pattern is up to you)
4. use same pattern for curvy map (adjust both sliders to suit.)
you get the idea
how sophisticated you get with it is again up to you