What kind of shoes?

My DD's birthday party is this weekend. I've had the dress for over a month, but silly me forgot that my daughter grew out of her dress shoes. Her dress is a pillowcase dress with lalaloosy fabric, and a pretty sash around the waist. I can't decide what kind of shoes would look best with the dress. I'm kind of torn between sandal type shoes or flats. Opinions are greatly appreciated!
Here's a picture of the dress for reference:
https://img3.etsystatic.com/003/0/7470298/icm_fullxfull.23358923_883bdi2w7e888o40cc0o.jpg

I'd say flats depending on what the dress looks like. Hard to tell without seeing something.

Quoting A mother & wife:" I'd say flats depending on what the dress looks like. Hard to tell without seeing something."

I updated the OP, the internet browser my mom has doesn't let me add pictures to my post, it says to click on an area in the text to put the image in even though I do. I put a link to the picture instead  

Quoting ☠Dawn[+Cambria]:" I updated the OP, the internet browser my mom has doesn't let me add pictures to my post, it says to ... [snip!] ... my post, it says to click on an area in the text to put the image in even though I do. I put a link to the picture instead  "

Mmmm that's a hard one. I would say both. But some flats would go best IMO.