Using Metahuman in pre-rendered stills outside of Unreal Engine

I am working on a game outside of Unreal Engine and would like to use UE5 + MetaHuman for the still renders/cutscenes. I feel like using Unreal for a simple 2D graphics would be an overkill, but I would still like to have nice looking cutscenes (albeit somewhat pixelated, as that is the style I am going for).

Using UE5 as a render engine is free, if I recall correctly, however I feel like my case is a bit different. What are the licensing terms for that? Are there any attributions I would have to make or fees I would have to pay (assuming the potential for financial gain from the game) for such use of the engine and MetaHuman assets? Are the licensing terms for UE renders and MetaHumans different in this example?