I think some very light weathering and shading would be nice, but not too much..
Too much weathering and it will look like a mess, but no weathering and shading at all and it looks like a plastic toy, just some shading around panel lines and details would make it look more alive..
Too much weathering and it will look like a mess, but no weathering and shading at all and it looks like a plastic toy, just some shading around panel lines and details would make it look more alive..