i wont try to improve it, especially if you're going to continue. i just am keen to seeit rendered in zbrush as i've had an urge to do something more hard surface with the workflow i've been using on the characters, but havnt had the time. i'll just try and open, export, and render, to start. re: the booleans. i'm one of those in the camp of 'they're generally hit n miss, generally just leave em alone'. but if they work the way you want them to, have a go. can always control+z.