Here is a great little project made by Marshall. You can see more of his dioramas and work right here: Marshall's Dioramas. They include an aerial battle, a dragon on a bridge and more.
One of the things I really like about this diorama is the simplicity of it. If you want to make a fantasy diorama you might want to try something like this which includes a few figures and maybe a tree or two. You can arrange just a few objects in a way that looks great just like Marshall did in this one.
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