This is an Original Gundam based on Gundam Astaroth.
This is my first modified Gunpla of 2026. I created it with a human-like silhouette in mind. The arms are based on the Gundam frame, with the elbow joints and upper arms from Immortal Justice, and the legs are based on the Gundam frame, with various modifications to the shin area. Here's some fun to play with ↓ (a photo before I attached the thruster cover around the Achilles tendon). Thank you for looking.

Gundam Astaroth Modification | わらびもち's Gunpla works