Yes, yes, yeeeees! I'm temporarily back from the land of the stressed after having finished the poster I needed to do for university. Don't get me wrong, I love designing things, but when chemistry is involved it kind of takes the fun out of it a little. My poster looks very similar to a certain website we all know 
Random photo: Sunset from my bedroom window.
Hi, I'm Saima and you're you. More hard facts 
saima(at)saimasays.com
Congratulations on your great plagiarism job.
Psychedelic picture by the way...
Is it still plagiarism if I copied off myself?
Good question! Okay then - congratulations on your efficient reuse of artwork...
Academically it is, well not really 'plagiarism,' but unethical to reuse substantial parts of one work prepared for one class/professor and pass it on to a second class/professor. (Read you uni's student handbook for the exact language of such matters.) But it is never wrong to cite yourself. (Many scholarly papers are full of self-citations. Sometimes it makes cross-referencing kinda moot.)
That said, good for you for re-cycling. I'd have done the same.