Many readers want to find an escape from their everyday world through your comic. Its part of the fantasy. Don't shy away from creating amazing back grounds, profound panoramic panels, and beautiful open splash pages used as the establishing point. Make it a habit of drawing and including back grounds and establishing points throughout your story.
The open establishing shot, as the picture on the top of this blog. It conveys a strong opening message and welcomes the reader to your adventure. The establishing shot is usually a panel displaying the current setting or location of the story. There should be one every time you change locations in your story. This will help the reader understand that they have traveled elsewhere in the story.
Establishing shots can be full page splash page, two page spread, a panoramic scene panel, or a regular panel size; it all depends on the effect you're going for. Take your time and think about the impact that you want that specific panel to have on your audience one they reach it. Give it a high amount of detail. You want the reader to be left mesmerized as they look at all there is to see.
Use references. Look at scenes similar to what you're planning. There is a lot to consider. Perspective and point of view are among the first that come to mind, but think about the mood, the color scheme, even the items and architecture. Do your due diligence when it comes to designing the space for the scene. Be creative.