I think it’s either Gargamel or Gurgelhals, depending if it’s newer or older, from the tv series or from the comic books.

The tv show uses Gargamel.

The older comics use Gurgelhals. The newer ones use both, depending on the publishing house.

Top right seems to be the best.

The others:

• Top left: Mystery tongue coming from or going somewhere
• Middle left: Much to bright, hard edges make finding icons difficult
• Middle right: Too many dark areas
• Bottom left: Might be okay as well
• Bottom right: Too bright and might not fit the mood as this seems to be an anime inspired background

So you saying, just the tip?