Don't Do Commissions Through The deviantART AppdeviantART takes 20% of the profit acquired through their commission app.More Like This
Compare this to simply donating points, where the artist gets 100% profit, or to using Paypal, where the artist gets 97% profit.
Seriously, 20% is incredibly ridiculous. It is just another example of deviantART taking advantage of young artists who can't recognize when they're being scammed, and milking their users for every dime they can possibly acquire.
Make an image or a journal and do commissions that way; you'll make a shitton more money in the long run.