Burdo ..they don't look like monsters...but maybe they are a midget strain?
Still,they look to be happy...8 weeks seems a little long for the buds you have going on..they should be bigger [in a pro set up anway] Like GK said...it is hard to give an opinion unless we know the grow room details..still bud is bud and it all gets smoked by happy growers..as long as you have some bud you should be happy and keen to improve next time!