Hi and welcome to a new challenge at the Card Concept!
Just look at this inspiration photo
Need some more inspiration? How about this card using Poppy Stamps' Pumpkin Collage.
The die cut sentiment is also from Poppy Stamps and is called Happy Halloween Signs.
the sprig is Papertrey's and is a die cut from Ivy & Bloom.
I sponged it a bit with PTI's Ocean Tides.
As you know, the Card Concept has several styles to choose from when designing a card.
I'd call this one, Clean and Layered.
Can't wait to see your creation!