Work (Portfolio) page

You can change the name and URL of the Work page without any issue whatsoever.

Work/Projects page options

You can change the number of projects per page, choose from several display styles, change page width or select the masonry option.
You can also fine-grain custom cover image size. Note that that options will influence the crop options in individual projects. Selecting a fixed ratio can help you have neat image sizes.

Project cover crop

To crop the project cover click on the little crop icon in the left top corner of the Cover thumbnail.
Thanks to Kirby 3 Image Clip plugin from Matthias Müller you are able to do that.

Trick to have different cover image sizes

Create a custom size (example: width:600px and height:800px), and then go to every even number projects, and crop their cover image to that size. Than go back to Work page options and select other sizes (example: width:800px and height:600px), and go to odd number projects and crop their cover images with that size. Select the masonry option in Work page options and you will have a layout like this one