Hey thanks for trying it out. It's a bit subtle but improved. So what you did with the gradient is helpful for getting the contrast, black and white levels to be the same but isn't the full story. You'll notice the white in your hair is clipping yet nothing in the background that is white is clipping. This is a sign that your white level is still off a bit. As far as color vividness is concerned, I was recommending the use of a gradient that has a color chart. Between the two of these, you should be able to zero in on a near match between the scenes (assuming both light sources are full spectrum - aka the sun or professional film lights) (If you want to take it to the next level, you could even try to match lighting ratios and angles for the scene by the use of an 18% grey "VFX Ball". They are wildly overpriced so I just had some 18% grey paint mixed up and sprayed onto a garden gazing ball.)

you could try a camera that auto follows you such as the swivl. This allows you to mount your iPhone, wear a little wireless mic and it follows you round.