Actually i'm really curious why the different in size is kinda big with almost same resolution in old and new gallery.
So i try do take a sample from older gallery and take one from here to compare and indeed this new one is higher quality.
Even if i reduce the resolution exactly the same in both sample, but the result is different. The gallery extin9xx uploaded is higher quality compare to old gallery.
Because the jpeg compression is better so the end result is better.
But yes i can't deny, it hard to detect the different if you don't use large monitor, so for 14" laptop or maybe 19" standard monitor PC, both sample will look same if you see it in fullscreen.