I put the white box as it is an adult image. I have no knowledge of her sig and seen it can be all over the place so I respectfully ask if anyone here thinks this is authentic.
This looks like a decent attempt, but ultimately I think it is not authentic. For one thing, it looks like "live" Madonna rather than "love". Normally, she makes what is clearly an "o". Also, there looks to be points where the ink started and stopped.