First, the scribble coloring is too neat. Way too uniform all over and the scribbles at the borders are unnaturally even and straight.

The "handwritten" labels are clearly a font, but before someone says "well then someone added the font afterwards" look at the edges around the text, especially on labels over the ocean and on the mountain range. The scribbles lighten and almost go around the text like it was there already. The font style itself is also overused by AI in cartoons and comics that it craps out.

Then there's the international border that goes down Lake Huron & Erie but stops after that.

Also, why is there one blue and one green island off the coast of Florida?

And, of course, Lake Erie and Ontario are switched around.