Weltklasse-illustration

I've been silent for a while because nowadays I've had quite a few exams. Not all of them were hard, but most of them took a lot of time to prepare for. Although I haven't passed all of them yet, it's time to get back to design.
Weltklasse, the small ad agency I had my internship at last October, asked me to make an illustration to their newsletter "Guck Mal". According to their brief it could be anything I think of or I experienced at Weltklasse.

My idea of them is that they are extremely sweet people. Their office is in a big and serious building (called Novi), but if you enter their door you can see immediately that they are crazy and different from the mainstream. And of course they love cakes, cookies and other sweets.