Honestly I don’t see enough difference here to justify paying for a pro. It just looks like a filter was used on the same picture. On my smartphone “Auto” or “sunshine” would have a similar effect. That isn’t to say it’s not worth it, this picture isn’t good evidence.
I have a few pro pictures on my listing and the main difference I saw is a wider angle without being distorted at all. Similar to what I can do with my panorama setting on my phone. I paid nothing for my pictures, the guy was staying here and did them for me gratis. Since I’m booked most the time anyway it’s hard to get excited about paying for that particular upgrade.
Do you have a different picture with a more striking difference?