Well, they look OK with the low res textures, but they have potential to look bad with the high-res versions, where you can distinguish the top edges of the barrel from the bumps in the middle.
You might remove the phong shading on the grass there - I doubt it makes much of a difference, and looking flat is probably better than having huge streaks of colored light. Also, make sure you're using a different phong value from the barrels.