Based on the artist name, I'm assuming that it was a selfie by the elemental, on the occasion of its most recent trip to earth ;-)
More seriously, to apply human body language to it, to me it looks like the elemental is in more of a stretching out position (as in "I'm free!" or "I feel the power coursing through me" or "tremble before me") than an attack position. The human isn't huddling in fear or cowering away from it, despite its size and obvious power, nor does she look like she is trying to escape. Her hands are in a pretty open position, and look like they could be gesturing upward, which would match the elemental's posture, which overall gives me the feeling of her calling it forth from the ground, and it has just erupted upwards and is still stretched toward the sky.