Color Quest (initially Color Warz) is a french tabletop skirmish game with a very unique style of minis by Fluo Craft, which sadly never found a large following. After some failed Kickstarter Projects for the base game in 2013 the creator focused on smaller releases via Game On Tabletop.
These Game On Tabletop campaigns, which run roughly once per year, seem to currently be the only source for the Color Quest miniatures.
In my opinion the few larger scale minis, like this Forest Guardian, are the highlights of the range.