And, If my math is correct, Your system has just over 2GB of RAM. Minecraft I believe requires 2 GB, but obviously if you want better performance, you're gonna wanna up it, As well as your Graphics Card.
You know, I really do enjoy the new stone blocks, as simple as they might be, The polished Granite has a cool look to it. But, I don't like any of them in Raw form.
I think It looks okay considering your time limit. I would, If you had extra time, do landscaping and water features and stuff... It really makes a difference.
