Unity lighting/rendering issues on Android

I'm just starting out with Android development, so excuse me if this is a stupid question.

I'm having some pretty major issues with lighting/rendering with Android - I'm using standard, nonmobile shaders (can't seem to get the lighting right otherwise), aside from the Shield shader used on the sphere, which doesn't seem to be causing any problems. There are two lights in the scene: a simple directional light, set to a cyan-ish color, and the point light you can see on the center of the image below.I can't technically tell you what's going on, but here's an example: When I create a scene in Unity that looks like this in the game view:

It looks like THIS on the Android device (a Nexus 7):

Now, I'm no graphic designer, but whiskey tango foxtrot, Android? Is this a device-related issue, quality setting issue, me being an idiot and not knowing how to correctly develop on mobile platforms, etc.? Thanks in advance!