Design A was very nice,but I knew you would change the planting scheme as that much investment wants more than a carpet of plants and I'm sure as the weeks go by you will be adding more and more plants to design B. also.
You might want to remove the wood that blocks the peak of the rock/mountain. Its never ending..almost 3 years into my own masterpiece and I added one more large rock the other day,a few more types of plants,and came close to adding 10-20 cardinals..but they would be live feeders for over 5" Rainbows I figured. Adding small fish is one thing,but young small fish is asking too much.