The Ethos demo that you imported is correct, you have to fill in other parts of that demo. Please check our knowledge base about Ethos stack and its features.
There are two types of demos, the standard and the expanded.
The expanded demos contains the complete demo (including media, slider, and etc.), and Agency is on ifs sample.
While the standard demos are just skeletons, a placeholder that you need to fill in. It doesn't contain images, slider, and etc. You need to add them yourself. Ethos 1 and other stack-based demos are the samples for the standard demo.
What would you like to change in your Ethos 1 demo? Maybe I could help a bit