So long story short. I switched from Unity to UE4.
This here is not from the game I'm developing. Actually, I'm leading a team in the Unreal Engine Summer Jam (which starts from August 8) in order to get familiar with game development in UE4. We did a trial run between August 3 to 5, and made a sample game in two days. A doom type game protype we called Joom.
Here is the Menu UI I made in Photoshop. The in-game HUD is not my work.
The practice game we made in 48 hours only, from scratch