looking good!
-Painting over black is hard, maybe make a second coat, or touch up the 'thin' areas of red.
-for your edges, some use too little paint leading to a frayed edge. Roll the brush as you pull out of the paint to ensure that there is good coverage and all the stray hairs are caught. as you put the paint down you can almost run a bit of a bead of paint down the edge making a nice clean line...of course, too much paint will just make a mess. (practice practice practice)
keep up the good work! and keep posting pics!
