Hi, Thanks for your invitation. Would reconsider this projects budget?
We would need to invest significant amount of time to produce an impactful result.
It would be appreciable if you could increase the budget. Thank you in advance.

Please extend the deadline for the contest if possible.

Dear Project Holder
Pls provide your valuable feedback for my designs.
As you can understand no project can be successful without timely feedback & continuous interaction, thus we request you to provide your feedback.
Waiting for your feedback
Thank you