Nice work! I, too, like your combination of woods. Cherry has long been my favorite, with walnut second. I haven't tried purpleheart. Does it change colors over time when finished with lacquer? I know from experience that cherry is photoreactive and darkens when exposed to sunlight, even if finished with oil based varnish (Minwax) or catalyzed lacquer or Watco Danish oil, less so if finished with nitrocellulose or acrylic (automotive lacquer).
Dave R.