If you upload an image to Shogun, by default you will see the compressed version. Your images are served compressed to ensure the best page load speed when loading this image into your page.
Image quality settings
On current Shogun plans, you can choose the image quality level that is served on your site.
If you are familiar with Photoshop's Save for Web feature, compressed images could be compared to saving for Web at 80%. With a plan that offers image quality controls, images can be compared to saving as a standard jpeg at Maximum quality, if you so choose.
These images focus on quality over file size. They are most beneficial and noticeable to users on high-definition/retina displays.
Custom Elements
You can also make a Custom Element to host your own images
Open the Custom Element Editor
Add this code: <img src="{{ image_url }}" alt="{{ alt_text }}" />
You'll notice that when you paste that into the template editor in Shogun, a menu appears on the right letting you configure the variables
Change them so that they get entered on the Sidebar rather than inline
Save your page
Then you can go into the editor and your custom element can be seen from the sidebar.