My paintings paint themselves using handmade watercolor paper. No more standard watercolor paper for me. Everything I've ever learned about painting finally came together. Paper weight does really matter. I've used paper that weighed 140lbs to 300lbs; usually cold press rough paper. The journal I'm currently using is by Savor Faire artist book, handmade paper with the weight of 150lbs. I'm able to paint on both sides of the paper with no problem, which is something I haven't been able to do without damaging the painting that is on the reverse side.
I used my water brush and Daniel Smith watercolors.