Need a designer to improve finsh design work

A chocolate company need a designer fast to complete work for a major Airline Company.
We had already finished the work for the entire chocolate packaging. However, we are not satisfied with the front cover design of the packaging.
You can improve our current design or change the design completely depends which is better.
The design is in vector. The theme/subject is four seasons. We need four designs separately.
One for summer, spring, winter and autumn.
We have 24hrs deadline. We are willing to pay £150/£200 to improve our current design.
If your design is good, we will mention your name as our designer.
Thank you
Sun