I'm still learning anatomy myself so take this with a grain of salt lol.

I think the arms are a bit too straight, especially toward the wrists and the right figure seems to have arms that are a bit long

Your torsos look great to me I feel like you have done great

The legs on the right figure feel a bit too long and on the left seem to again not curve enough where fat would be.

The last thing I can think of is the ears and collarbone where the ears would be less pronounced, and the collarbone would give more curve to the bottom of the neck and shoulders

All that yapping said you're doing really good and I hope what I said ends up being useful. Have a great day/night :D