We have to make an illustration and also a logo?

Not necessarily, I'm new to design crowd and wasn't aware that it was geared to one project at a time. Primarily interested in illustrations at the moment, and if a particular style fits what I'm looking for, then I'd hire the designer for subsequent illustrations that follow the stylistic theme.

would you guarantee the payment?

with required style of illustration --- the contest prize (US$150) covers only one image
Or you had planned to receive all 6 image concepts (listed in 2) paragraph) for that price?

Hi! Please wait for my design!

Can you please extend the deadline?
Also same question with Oomori.