Images from Design Studio Don't Render

Please move the question to Products (this space is for website feedback, not support).

I've seen something like this before, and it has nothing to do with Marketo. Are you by any chance working in a corporate environment where there are very strict internet controls in place? Try looking at the images outside your work network and seeing if they render, or using a different browser? There is nothing inside Marketo that is designed to prevent images from rendering, but often corporate security set to paranoid level can impact the images rendering in browsers. I hit this quite often in the financial services industry.