The fourth installment is the long-awaited Stark Jegan.
I think the Stark Jegan is the one I have the most attachment to out of the Artifact lineup.
Everyone says it, but the battle with the Kshatriya at the beginning of Unicorn was so intense that I remember being drawn into the anime all at once when I was in middle school.
I thought I would use the mugwort color used on the Zaku for the main green, but it was too dark as it was, so I mixed in some lighter colors. Through trial and error, I think I mixed the mugwort color with pale green and white.
Since it's a special edition Jegan, it means that the regular Jegan has what looks like grey armor attached to it,

[Artifact 4] Stark Jegan | Poyon's Gunpla works