ArtistGardener
Aquarium Advice Freak
In addition to swapping the gravel out with a more natural color, and adding some fish--sorry, snails just aren't lively enough for me!--here is my opinion: things don't generally look evenly spaced in nature. I would keep the original brown piece of driftwood (fake?) and get rid of the "log" one--too perfect. Put the brown one in place of the log but its the side, maybe propped up on the outside end with a medium-size rock and the other end partially buried in the gravel. Place the large fake plant behind it towards the back left corner. Move three of the hairgrass clumps so that they are clumped unevenly, but overlapping, on the right side of the rock and leave the fourth one where it is.