I based myself on the original movie and the artbooks, while using some references from the series for the clothing. The character's clothing is inspired by two of the Gelfling tribes: the Vapra (most cultured and intelectual clan) and the Spriton (very skilled on crafting weapons and textile).
I'm not very knowledgeable of martial art poses and the Avatar animation style. I wanted to be as precise as possible when drawing an earth bending move, so I took the scene when Korra spars with Tensin's childrens for this one. I based the clothes on a few different characters from the series. I thought it would be interesting to add protecting gloves with elbow guards because pieces of rock could bounce and harm my arms (I'm very fond of my hands!).
You can always tell Pokémon trainers design by their silhouette. There's the hand or wrist movement with the Pokéball, the strong and confident pose and some other details like the fun action lines for some of the characters.
Thank you for visiting. I hope you liked this universes study.
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