As a piece it's a bit striking if a bit uninspired. This motif is a bit cliche, not ineffective but more like ineffective on its own. Not bad but, I'd like to see more of a spin on the concept. Like what are they falling into or falling from. The image alone gives me nothing about that. The render itself is fine if a bit simple, I'm not a fan of how textureless the subject is. Looks like a pastic army man sinking to the bottom of a toilet. The volumetric lighting looks great.

Overall not bad but needs more... anything.