he/she really looks much better, its a really significant improvement.

get a kitchen scale that displays in grams, its good to have one. and then you can follow the simple rule of thumb for hatchlings/subadults, which is 10-15% of body weight every 5 to 7 days.

another rule of thumb is that the widest part of the food item should not be wider than the widest part of your snake. but then, your snake is recovering from being really, really thin.