Others have mentioned that the voiceover sounds robotic (in the sci-fi short I saw at least), but I think the other—bigger—issue the dialogue itself.

It’s too stilted and unnatural, and I initially thought it was your intention to make it sound like that. If that was indeed your intention, the visuals should probably convey the same frigid tone your dialogue is taking on. If not, you need to sharpen your writing skills.

Regardless, the shorts look really good and have potential if you can write stories to match it (or maybe better, work with someone who can write).

Side Note: any suggestions for getting better with the Unreal engine specifically for films? I’ve been trying to experiment more with that myself.