In the options of PocketMQO you can also play with shadows and lighting options, adjusting them however you like. You can even modify textures, change their colors, and fiddle around with any 3D models you've imported.
PocketMQO is a great app that lets you open any Metasequoia, MikuMikuDance, or MotionData file. That's something that for now, very few other Android apps are able to do.
Requires Android 3.0 or higher