Second one in a 3-part series of DC mermaids!  Main figure and background entirely drawn/painted in Procreate on iPad with an Apple Pencil.  The cosmic fish tail fill was produced with a tricky combination of Frax (to generate an interesting fractal pattern) and Percolator (to lay a cool star pattern on top).  Final composition was done in Adobe Photoshop, with a smidge of Illustrator.
 

 
