You have some duplicate meta tags that might confuse the Pinterest crawler – if/when you validate your webpage with Facebook’s debugger (for example), you would get errors. You should remove the following duplicate meta tags:
<!-- Open Graph Meta Tags generated by Blog2Social 612 - https://www.blog2social.com -->
<meta property="og:title" content="Michelle Yeoh (Celebrity Sunday) All-Over T-shirt"/>
<meta property="og:description" content="Michelle Yeoh: A humorous caricature illustration of the well-known Malaysian actress; Michelle Yeoh. One of a series of caricatures achieved for the Celebrity Sunday series, where a famous person is rendered within a day. The idea is to show them as if in a passport photo to have consistency. Get to know your new favorite […]"/>
<meta property="og:url" content="https://robsnow.eu/product/michelle-yeoh-celebrity-t-shirt/"/>
<meta property="og:image" content="https://robsnow.eu/wp-content/uploads/2020/01/mockup-73db1b63.jpg"/>
<!-- Open Graph Meta Tags generated by Blog2Social 612 - https://www.blog2social.com -->
The following meta tags from WPSSO look fine.
<meta property="og:type" content="product"/>
<meta property="product:availability" content="instock"/>
<meta property="product:retailer_item_id" content="117751"/>
<meta property="product:retailer_part_no" content="YeohAll001"/>
<meta property="product:price:amount" content="38.00"/>
<meta property="product:price:currency" content="EUR"/>
<meta property="product:pretax_price:amount" content="38.00"/>
<meta property="product:pretax_price:currency" content="EUR"/>
<meta property="og:url" content="https://robsnow.eu/product/michelle-yeoh-celebrity-t-shirt/"/>
<meta property="og:locale" content="en_GB"/>
<meta property="og:site_name" content="rob art | illustration"/>
<meta property="og:title" content="Michelle Yeoh (Celebrity Sunday) All-Over T-shirt"/>
<meta property="og:description" content="A humorous caricature illustration of the well-known Malaysian actress; Michelle Yeoh. One of the Celebrity Sunday series."/>
<meta property="og:updated_time" content="2020-01-27T13:21:32+00:00"/>
<!-- og:image:1 --><meta property="og:image" content="https://robsnow.eu/wp-content/uploads/2020/01/mockup-73db1b63-600x315-cropped.jpg"/>
<!-- og:image:1 --><meta property="og:image:width" content="600"/>
<!-- og:image:1 --><meta property="og:image:height" content="315"/>
Since you’re using WooCommerce, I would suggest also fixing the warnings from Google’s validation tool as well:
https://search.google.com/structured-data/testing-tool/u/0/#url=https%3A%2F%2Frobsnow.eu%2Fproduct%2Fmichelle-yeoh-celebrity-t-shirt%2F
See here for details on how to fix WooCommerce product errors/warnings using WPSSO:
https://wpsso.com/docs/plugins/wpsso/installation/better-schema-for-woocommerce/
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