Here's how to do the glass effect on Canva.

Here's how to do the glass effect on Canva to get pictures like this, this and this. It's super easy, so let me show you. Bring in the picture you want, and then duplicate it and put it exactly over the picture beneath. And then bring the edges of the top picture to wherever you want the glass effect to be. But if you want everything to be perfectly aligned, here's another method. Position a square element wherever you want the glass effect to be. That way you can like perfectly align it, and then you can duplicate the picture, put it on top, and then just drag it to wherever your box is. Either way, once you have the top picture where you want it, go to edit, blur, whole image, and then just drag it to however much blur you want it to be. Now the glass effect is really coming together. So go to corner, rounding and round the corners, and then go to outline, make the line thickness one, and then make the line white. You can be done here, or you can go the extra step and go to shadow. Find a shadow element that doesn't have, like, the harsh corners. I like to just do shadows on two edges, so I do the right and the bottom one. And then make sure you put it behind the box. Now you can add in your text or your other images, and you'll have the glass effect.