Irenea's Fauna - Creature Design

I challenged myself to create an ecosystem of an alien planet I imagined and these concept art boards feature some of its species ! Hope you like it !
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Irenea, planet of Serenity, is the perfect place for vacations thanks to its strong resemblance to the climate and composition of planet Earth. There are no predator there, only plants and herbivores. Since the notion of fear doesn't exist in the ecosystem, the fauna and flora of this planet have developed into very imposing and colorful forms.