I love Zeon, but my posts have been all about Gundam, so here's a Zeon-made mobile suit.

Please excuse the poor quality of the photos, as this was taken quite a while ago and the actual model is at my parents' house.
This is a reproduction of the coloring from SD Gundam: Dream Maron's Space Journey.
The kit used is the HGUC Gelgoog J.
There's also an illustration by the renowned Kazuhisa Kondo of a mass-produced version in a different color scheme (closer to the normal version), so I'd like to reproduce that one someday too.

A legendary color scheme? The mass-production type Gelgoog color? | サイハーン・イツダヨ's Gunpla works