Increase testimonial thumbnails size

With this CSS in your child theme:

.entry-testimonial img,
img.attachment-toivo-testimonial {
    border-radius: 0;
    max-width: 140px;
}

That 140px is max size at the moment. Also note that you might need other CSS changes after that for better layout.

Hello,

Thank you very much for your reply! ??

That worked!

One more question:

Is there a way to vertically align the text so the first letter of each line is at the exact same vertical position? (my website: https://samuelchopard.admireyourworld.com/testimonial/)

Just like it would display on the table.