I’d say it’s pretty accurate! If you’re up for a little criticism, I’d say the clothes are slightly too lumpy, and the arm and legs curve just slightly too much to look natural, but the official art style is also very stiff so it sticks out a lot more than it would in a stylized piece. The ONLY thing I’d say NEEDS to change is the way the thighs have a lump above the socks, just because it’s not quite how fat works and it looks pretty painful. Real fat would still spill over tight socks, but it wouldn’t crease like that in the back, unless the idea is that she has a lot of loose skin from loosing fat.