Custom mob model texture is displayed wrongly

Good morning community,

after creating a custom mob model as well as a texture for it in Blockbench, I loaded it into MCreator (which all worked fine), but as soon as I start Minecraft, the texture is displayed wrongly. As I said, it is completely fine in Blockbench, but duplicated and scaled down in MCreator. I'll append a screenshot of the Blockbench project, the texture image and the mob in Minecraft.

Tschüs,
ErrorMakesMods

Images:
https://imgur.com/a/kYE4gyH