Instruments--Progress

For this final project I'm doing in my digital illustration class, the idea is to create a series of four scientific looking illustrations of four different instruments that could have been discovered at any kind of dig.  Because I'm a die-hard Peter Pan fan I decided to make my instruments from things Pan and the Lost Boys stole off of the pirates and made into musical instruments.  This is what I have so far, and all I have to do now is tighten the detail on these things and paint them, probably in a sort of oil lift out technique probably.