abstract shades of blue oblique wavy sky background - powerpoint template

abstract background color colors colorful web design graphics texture power point powerpoint slide concept conceptual intellectual theoretical notional metaphysical spiritual spirituality metaphysics unexplored realm sky space air airspace ether etheric aakash heaven heavens higher expansion vast infinite infinity vastness limitless boundless unlimited endless cosmos cosmic earth wave waves wavy ripple ripples flutter undulating swaying quivering oscillating oscillations torrent surfing wind nature natural symbolism vivid lines curve curves curved clouds cloudy shades oblique creativity creative azure sapphire cerulean aquamarine template