Hi Sebastian,
we prefer the number #7, the letter "K" is better, more "human"
Try to change the color:
1) PEAK in silver with color gradations.
2) The other letter, gradations from blue to light blue.
3) change the font, we'll prefer one more elegant like "brittanic" o similar
4) can you try to add also a design relating to sport or to the concept of "internationalization"
Thanks and good job!!!