Only one product image at the shop frontpage

Site URL: http://www.photosbyskovlund.comp

Hi again

I going to sell finer prints in my shop, and its close to run.

On each product page, i have more product image, to show example 

But its results in, that's on the shop front page, when you move over a product, the image change.

Is it possible to change this, so its just the fist product image that's been shown?

And is it possible to have different image size on the product frontpage -e.g. vertical and horizontal?

Thanks in advance 

Morten

I can help disable the second image show up

.products.collection-content-wrapper .grid-item .grid-image-cover:first-child {
  opacity: 1 !important;
  z-index: 9999;
}

Thanks so much Bangank36 - its what i looked for.🙌🏼