Hi Josk, although I see a lot of enthusiasm for metallic light here, it is simply not my cup of tea. Admire your effort but maybe I've seen too many fireworks at this time of life - all of which fizzled out after a very short time.
However i find your "hot distro" ( without our lovable but overused tux ) to be vibrant, energetic - exuding a quality that is lacking so often even acknowledging that much is in the eye of the beholder.
Now here's a challenge - I wonder if a variant of "hot distro" could be made in DARK BLUISH tones whilst still incorporating the 'energy bubbling artistic lava' with that delightful smoke rising from it.
Perhaps a shift of 'flame' to the left side? Dark blue for the really rear background with
reddish pattern subtley overlaid & the lava flame & its current reds emerging from the dark blue.
I know it would be a challenge but if the balance could be hit I reckon it could be pretty impressive. Studied art but unable to convert it to 'canvas' You however have the ability.