As long as it's non-profit use, and you only use artwork from the "personal homepage" part of my homepage www.jakobkramer.dk (that is, the homepage you reach when clicking the "Pers. homepage" link on the index page), you can feel free to use any graphics found in the galleries in connection with signature tags etc.
Any artwork found in the "freelance" part of my homepage has been bought by different commissioners, and therefore you can't use these images (I'm sure you understand).
When linking, please use this URL: www.jakobkramer.dk
Feel free to ask if you have any questions!