Painted Canvas Trainers Fish Design

Painted canvas shoes
I painted this pair of canvas shoes for myself using permenant marker to draw the design out and then Dylon fabric paints. I sealed the paint with a crafters heat gun and added detal with silk outliner and some gem studs for eyes. Obviously the difficulty will depend on the design you choose. I am looking for some sort of sealer, maybe with Scotchguard that I can spray on now they are finished so I can wipe them clean.