I am by no means a sifu

Your shoes look quite well worn and your right leg heavily supinates more than your left leg.
Since you mentioned that you are overweight, I suggest that you go for daily maximal cushioned shoes like Asics Nimbus, Saucony Hurricane, etc
Those should give you a very comfortable experience including above average durability

Hope this helps.

Yep running frequently combined with the rate of your body metabolism will cause you to look 'cengkung'. This usually is very prominent on your cheek and will cause a person to look older cos a runners' cheek tends to sag faster.

For some ppl, running will burn a high amount of calories thus you are losing weight rapidly. This is good if you are on the route to lose weight. The longer you run in Zone 2 heart rate of your age, the better the fat burning is.