Of course. Each tile in the game is 16x16 voxels in size, so in voxel paint you would set image size to 16.
All buildings should be a square multiple of 16. Being square will allow full 360 degree rotation of any building.
Any voxel that is colored #ff00ff will be transformed by the engine into whatever color the owning player is.
For size reference, here is the lander file, you can observe and match the scale.
Also if you are logged into voxel paint when you create your model, your username will automatically by parsed by the game when the in-game credits are added and displayed.
I will create a more detailed guide at some point, but this is a good starting point.