Short Animation - VFX Movie

Hey guys! I couldn’t decide where to open this topic so I choosed here.

I have 2 weeks of free time. And I want to create a very effective short animation or a short vfx movie (more like a scene) for my portfolio. I have many years of blender experience but I haven’t put in any recognizable work yet. My job applications are left unanswered. So I want to change this situation. Any tips, any suggestions for creating an impressive and recognizable work is much appreciated. I’m okey with using assets with my project, so I don’t need to start from scratch (so 2 weeks is a pretty good time). I will start doing this project on 23 of January.

Thanks in advance. If there is anything not clear, please ask; I know my English may lead to misunderstanding ssometimes.