How old they are also makes a massive difference. I was judging them as 5 weeks old, but in another thread you have said they are 4 weeks old. Your week 3 pics looked good, if these are 4 weeks then these look good, if they are 5 weeks then they might be a bit behind. Just 3 days can make a big difference...

http://boards.cannabis.com/grow-log/...ml#post2096069 < 2 pictures of the same bud taken 3 days apart.

You have done fine for a first grow. Also... even though this is supposed to be an 8 week strain, I would be tempted to push one of them to 9 weeks (depending on how they look).