Manga and Art

As some of you people may know i study german and art in germany, in dortmund to be more concrete.
and today  happend to be a day where i could present my stuff. im not sure if people form different countries a familiar with that problem, but in germany manga is very unpopular in university if you study art :/
but i managed to show my manga related work in advance, so i knew its not the favourite stuff my prof sees but i wont be laughed at or something.
i wasnt really sure anyway,because i had in mind that maybe there waas a chance that i could participate to get my work presented in a museum along the work of other students.
Well ,before i showed my stuff i spoke with an elder student, who already had the bachelor.
it was really ...i dont know,like depressing. i argued with her,that i can guess that manga-related art has never been shown in the echibition i wanted to participate,so that might something new for everyone,but she replied that the teachers at university woldnt be like ready for sth. like this, in china i'd have propably more luck.
after all i showed it to my prof,and she was pretty open minded,but i still have no good feeling about my chances being part of the exhibition.....

about my art, she saw no problem  i wanted to solve/work at..
thats an  interesting point i think,but having fun to work on the stuff one likes should be an acceptable reason to so art, too i think xD
but anyway, i know that university is not the audience i have in mind when i work, but it would be nice if manga-related work would be more appreciated there by profs. i mean,some dirt stains is accepted as art,so what is the issue with "pretty" things? 
 i really wonder if there are counrtries where its equally accepted OuO