Not a single piece of this is a direct rip from anything Kenney has made. It is a reimagining of Kenney's 1-bit tiles at a smaller scale, with unique tiles, and a more retro feel.
You could even consider it fan art, hardly an offense if you ask me.
My assets are public domain so people are allowed to copy it, create new tiles, use it as inspiration - that's all very okay and I'm okay with it!