Extract url from style attribute

Hi all,

I'm having difficulty getting to the url that is part of a style attribute. There are five images below the main image that I want to get the url of at this link: https://www.worthpoint.com/worthopedia/vintage-pillsbury-doughboy-plush-2064772307

I've tried many different things and can get more than what I need using HTML as the selector type. Below is what I think should work but it does not return anything. (Note that I'm only selecting the first image at this point, eventually I'll want all of them). Any ideas? Thanks!

{"_id":"teddybear","startUrl":["https://www.worthpoint.com/worthopedia/vintage-pillsbury-doughboy-plush-2064772307"],"selectors":[{"id":"Title","type":"SelectorText","parentSelectors":["_root"],"selector":".title-detail h1","multiple":false,"regex":"","delay":0},{"id":"Image1","type":"SelectorElementAttribute","parentSelectors":["_root"],"selector":".slick-current a.thumbs[style]","multiple":false,"extractAttribute":"","delay":0}]}


Type: Element atrribute
Selector: div.slick-track a > img[src*='/zoom']
Multiple: Yes
Attribute name: src