I just noticed that another new skill also has bad image information. Also because the image name on the wiki is different from the name in KoL:
The new skill
Thunderheart has its image listed as heartrock.gif
It should be: heart.gif
After that I checked them all, just to be sure, and these are the only two errors.
Code:
ash for x from 16000 to 16030 if(to_skill(x) != $skill[none]) print_html('<img src="/images/itemimages/' + to_skill(x).image +'"> : '+ to_skill(x))