you don't necessarily need to move completely away from waht you've been doing...maybe think of it this way, when a sculpter begings a sculpture he makes the mass shapes first, then he goes back through and adds all the sweet little details... so right now you're going to build up the mass shape, and then you go back through, cut the fat, and then sculpt the smaller muscles you want to shape and impress... it is sadly a time oriented passion, but with time comes results... and i know you'll get there...
and yeah that's my lovely lady there...