This one is pretty large, so I'll go into each one separately in order of appearance
The first one was an icon for frontlines. The initial posing and lighting basis were done by someone else using Blender Cycles, however I exported the scene to Houdini's Karma through USD and did adjustments there, color grading in photoshop
The second one was meant for the social media page whereby the middle would have rendered text. It was modeled in Blender and highly art directed, then rendered in Octane render for fast iterations and post processed in Photoshop and lightroom
The third one was a highly art driven one for a thumbnail, I was given the character which I had major parts in creating and had textured myself, posed it, made the rest of the scene, and simulated the smoke silouhette in Embergen. The render was done in Octane render and many alternative versions made in Photoshop
The forth one is basically the third one from a different view with a different smoke simulation, meant for icon when cut into 1:1
Overall, I used Octane to be able to iterate rapidly, as the art director didn't really know how to art direct