It looks fine at this distance. Now you need to do the thumb.
Turn off all the layers you've used to replace the backdrop. I can help you with that part, once the fingers are fixed.
With Bridge you can batch edit much more powerfully, it will speed up your workflow so much.
Not to mention that you can, of course, modify Bridge's layout to look however you like.
Your protestations are invalid. Delete Faststone NOW.
No, I told you, look at my numbers again. You're not getting them in the right order.
See, on each channel, how I have the largest number first? You have zero first on some of the channels.
Are you sure it can't? Have you checked what you took? It's pretty rare.
Remember that bracketing then combining is usually done by people who don't know how to process their raw files accurately. You are not one of those people.
No. You must purge this way of thinking from your mind. If your screen looks any different from your prints, it's BAD.
Have you read all the way down the instructions to the troubleshooting part?
What are their pixel dimensions? That's the important part.
Some very important info here: https://www.damiensymonds.net/2015/08/about-jpeg-file-size.html