That is pretty normal, but is it a 5 gallon batch? It looks like a fair amount of hop material in there. Even so, don't sweat it. If it is done that quickly, I have to ask how did you determine the amount of yeast to pitch? Because it appears to be fermented out - so either you pitched a lot of yeast (which may have been perfectly correct based on OG), or you fermented on the high side, which allows it to finish quickly, but produces more fuels and other off flavors...test the FG 3 times over the next week and taste it. It may be perfectly good and then you just have a big trub cake.