this tile would have been ok if you didn't put in those sharp black lines on the right border of it. they segment the tile from the rest of the quilt and damage the overal integrity of the quilt. the gray blur on the left border is also rather unnecessary, you could have led the tan theme into the next tile.
overall your art is not bad, you just seem to use your drag and blur tools too often.
cheers,
Gennadyi