As said above, good texturing with PBR materials, good lighting and 2dfx (like the smoke) and well optimised models. Here's a good quick example of high poly to low poly baked material use Source: https://www.reddit.com/r/blender/comments/1sgac0v/this_is_your_sign_to_learn_how_to_bake_normal_maps/ Or better yet here's a…
@Modeller this is a PBR workflow; creating highpoly meshes and baking to lowpoly. Tutorials, maybe like this one below (I haven't watched it) could get you on the right track, good luck https://www.youtube.com/watch?v=QbxtY4nHMuQ an overview https://www.youtube.com/watch?v=Ypm8PCILiDM…
Agreed with Flat Face. Definitely think about the context that you envision for this asset. Think about how much screen space it will take up and how the player will interact with it. e.g. will it take up the whole screen and will the player get to visually analyse it for as long as they want? or will it be a small prop…