Hi,
Your bow looks OK, but it is very square looking. If I was you, I'd round off all the edges. Round edges are stronger, and more pleasing to the eye. A square edge is more likely to lift a splinter, especially on a self bow. Your tiller looks decent, except your picture is at a bit of an angle, and it's ahrd to tell if your tiller is in fact even. Also, you need to cut your nocks at an angle!! Measure 5/8" on the back, and 1 3/4" on the belly. Draw two lines across, and then corner to corner, and cut your nocks along that line. A bit longer, and more tapered riser would probably be more comfortable too! I love maple... I'd have to say it's my favourite white wood. The grain on the piece you selected looks super.