Cute little fisher girl embroidery design

I am working with one of my customers with her embroidery machine and a couple of designs she purchased from you. The designs are: Girl212 and Girl544. I have also purchased them for testing purposes as to not violate copyright. Due to the density of the designs, she is breaking needles. Also, sometimes the outline goes out of whack and her design is ruined. Do you have any suggestions? I am stitching them out to determine if there is an issue with the machine, but so far, not. I think it's more due to the density. Any help is appreciated.
Thanks in advance

These designs have all copyrights.
The density of the embroidered design depends on two values.
1. The density of the fabric on which you embroider. Summer T-shirt and leather bag or denim have different densities.
2. Density design. Simple single-colored threads with no effects are less dense. Using effects (shadows, color transitions, small details) is more dense.
We use a standard recommended density of 0.4.
This density allows you not to see the fabric you are embroidering.
What fabric do you use?
We can reduce the density for your project.
What size design and format do you need?
We also attached a photo of already completed works so that you could see the finished project. More photos you can see in our gallery.

Hello, the designs that I have downloaded recently don't have jpgs with colors and designs with them to print out. Have you stopped putting them on the files or did I do something incorrectly? The color change sheets are very helpful. Can you check on this and let me know? Thank you.
Sincerely,

You have not selected a color chart in your order history. We have added this item and sent your last order by email.