Judging by the picture, I would recommend MUCH BIGGER STONES. The power and composition within the Iwagumi style is in the character of the stones. If the stones fail to bring character to the aquascape, generally the whole aquascape will suffer.
I know. I had great aspirations for this first tank but now that I've got it started I'll settle for just having it grow in nicely. I had some bigger seiryu stones but took them out when I heard that they mess with the pH.
At this point I'd like to just get the tank filled and growing in so that I can at least have healthy plants for a rescape or tank upgrade in the future.
Any suggestions on why one side is browner than the other?