I made a Gelgoog. Among the Universal Century MS, the Gelgoog is one I particularly like, but I thought, "Even though I say I like Gelgoogs, I've only ever built simple assemblies," so I quickly used my current skills to make an HGUC mass-produced Gelgoog.
Even though it's HGUC, it's a kit from 20 years ago, so it would be too much work to try to modify it completely. So I took it easy. There was almost no removal of seams (only both shoulders). The only thing I did to improve it was to extend the fuselage, and the basics were a matte top coat on the molded color + weathering finish. I painted the back of the shield and the black parts of the skirt grooves. By the way,

Mass-produced Gelgoog | ほたる's Gunpla works