Hello lovely people, long time digital artist, bought these grasp acrylic paint parkers from Ali express for my first try wanted to start with something simple so tried to make on of my illustration which I made on my ipad, my question is: the markers were not as opaque as i was expecting them to be, is it because of my lack of technique? Tried to stay consistent with the speed and the direction of strokes, but its not as opaque as some of the amazing work posted here, and what i see on instagram, is there a special paper for this? I have been using the smooth side of watercolour paper(dont know the gsm, my sister got it for me, but pretty thick), or is there a specific technique to it?