This is definitely not true, I'm pleased to say. Your photos are great.
Edit them properly, then give the full-resolution jpeg files to the client, and they'll be able to print them as big as a factory wall if they like.
You did it!
And I'm very pleased to say the focus is PERFECT ❤️ ❤️ ❤️ ❤️ ❤️
If all your photos are like this, you're a champion. Nothing to worry about.
Finally! A raw file!
Go ahead and increase the Exposure slider so it's not so darn dark, then do the noise removal.
Then press "Open" to bring the photo into Photoshop, THEN you can take the 100% crop to show us.
No, that's not the original photo from your camera. It's MUCH too small.
That file is not even one megapixel. I'm sure your camera is 10, 20 or more megapixels, yes?