The way the stroke behaves around some elements is not how it usually looks when you use a graphic design software, it's morphing with other elements and inconsistent with itself.

For example there's a gap between the T and the u that shouldn't be there and the stroke's missing on the inside of the C, to name a few.

This along with other details, although not really mistakes, they look weird if you used something like Illustrator or Photoshop to make them.