AntonioAndKarin says:
My guess is the original is not sharp... you can send it to me by email if you want me to look at it. But i just checked your other pictures, and there are definitively some very sharp ones (recent ones).
AntonioAndKarin says:
Old pictures had to be scaled up and will loose a bit of quality when zoomed in (the big view). But new pictures uploaded since of a few months ago should be as sharp as ever, provided the original is sharp..