I like the lens flare effect, it's pretty well hidden in the texture as it subtly leads the eye to the more important, shiny bits! The detail on the gold pile is nice as well, with the different shades of yellow that lets you discern the coins from one another very efficiently.
However I find that the rainbow is a bit wobbly, not in the fun slide way, abruptly ending near the pile instead of fading out; not sure if you intended to have it be a solid thing or not though. The symbol on the pot could also have been more symmetric, which would have given the impression it's on a round surface - seems like it is bulging out to me otherwise.
Overall though, it's a pretty comfortable picture to stare at! I'm assuming the texture was used to make it seem like it just stopped raining too, rainbow and whatnot, which is pretty soothing.