Where can i Change the size of product thumbnail images?

Heyyy , is it possible to have different product image sizes on the shop page. I will be selling a range of graphic prints. Some images need to appear in as landscape and other vertical. see image attachment for example.

Thanks

Brad

There are a couple of things to look at first, one is whether the auto crop is turned on if using a gallery block. The trouble with that is that it will crop a picture, cut off something you don't want in order to keep it the same size as other images. You can adjust grid size, columns,  if using one of them and if single image blocks, size them using spacers. But mixing landscape and Portrait together means picking your poison same size or something cropped. The latter you can adjust a bit using the centering control when editing the picture, in 7.0. That control shifts the center of the cropped image up or down. 

Thanks for the help ! Ive had a play around and its not possible to have alternate sized images. Im using 7.1 and im finding it immensely rigid !

You said these are thumbnails, from a shop page? Style tweaks for a 7.1 shop page are the same for a 7.1 collections page, bottom link gives more info. 

https://support.squarespace.com/hc/en-us/articles/223016508-Troubleshooting-cropping-issues

https://support.squarespace.com/hc/en-us/articles/360038309852#toc-store-sections

How do you change the thumbnail size to portrait?