Looking at this photo there are several things that I can see you could look to work on for your next figure.
Firstly I see that the paint could still do with more dilution as is still looks rather 'creamy' in texture especially in the skin tone.
Don't worry about paint being too thin, several thin coats are much more preferable than too thick a single coat.
Next is lighting and shadows, highlighting a figure by just picking out the raised areas is
"OK" but a figure is depicting a real figure just smaller so the curves of the shape change the highlighting and where the shadows/darker areas occur.
You might want to consider that as a 'tradition' model painter highlight as if the light scource is at 45 degrees to the vertical of the figure. This will also change the light pattern of the figure.
Think of it like this:-
1 is the lightest of areas such as the head, shoulders, upper chest and raised surfaces of the arms,
2 is slightly darker and would be the lower surfaces of the arms, under the chin and neck, lower chest/stomach and upper thighs
3 is slightly darker again and would be legs, calves and boots.
Now to even add complication with round (ish) shapes where two surfaces come together such as an arm and the chest the "valley" where the two meet will have its own micro shadow, similarly where straps cross a body they themselves occur a micro shadow which is where 'dark lining or black lining' comes into play.
Now I've found that working initially on an area with the mid tone colour I'm using then glazing in shadows and working up highlights gives me the best results.
But the best thing you can do is continue painting, ask for advice and and ignore the scores for the moment.
At this point you need to only paint for yourself and not to please us, after all it's your model and you need to feel happy with it.