Fiverr Gig Promotion

[stylomat_gfx]

Hello Fiverr seller family!! My two gigs are eligible for Fiverr gig promotion and I have turned it on for them. i have kept the CPC on auto mode and daily budget of $10 but I am not receiving much clicks or impressions on them. I am attaching screen shot of this month promotion for your review.
Can you please guide me how much should be the daily budget? And also should I keep CPC auto or select some amount manually?

Thank You