That looks awesome! It looks like a realistic take on something you'd find in the Mother series. (Specifically it reminds me of this enemy: http://spriters-resource.com/gameboy_adv...heet/14557 
) The lava part doesn't look like lava, though, the brown makes it look like earth/dirt. You should use more vivid reds and yellows.
) The lava part doesn't look like lava, though, the brown makes it look like earth/dirt. You should use more vivid reds and yellows.