it seems like whenever there is a slightly barren part of your piece, you add a flock of birds? and in all of your pieces you add a bunch of unnecessary clutter. it all looks good, but when you add it all together it can dilute the whole piece. its okay to let things breath! thats just my thoughts though, im not trying to diminish your hard work, but i think you could do with more simplicity instead of just adding more and more and more.