However I do think u can improve by changing the claw colour to yellow image reference: File:Spr 7s 383P s.png - Bulbapedia, the community-driven Pokémon encyclopedia
Edit:NVM https://play.pokemonshowdown.com/sprites/ani-shiny/groudon-primal.gif this is better as u can see u might want to adjust the magma near the eye. It shouldn’t be red it should be similar to the other parts. But my point still stands a few adjustments and done.