"I used Blender + Photoshop.
I used a photo of Ada's figure for a pose as a reference:

∘ • ∘ • ∘
Credits:
1. Ada Wong and pistol by Sticklove.
2. Hair by me.
3. Rifle by lezisell.
4. Cliff by DJMaesen. I improved its texture and changed bump.
5. Sea by Calibrator.
6. Skydome by BlinkJisooXPS. I improved its quality.
7. Butterflies by freepik."