your carrier is lovely.
Too bad that those tracks don't come in the Tamiya box.
About the figure. In relation to the carrier and to its size it has not enough contrast.
For visual help you can search here for posts from Luciano Rodriguez. He matches vehicles and figures extremely well.
Also here is a gallery of some 1/35 figures by master painter Jaume Ortiz:
Sure they are bigger but show the meaning of strong contrasts well.
Your little man seems to miss the medium and deep shadows on the skin. If you paint with oils you could make a heavy wash with a medium shadow tone. Take off surplus oil colour with a dry brush afterwards.
After that has dried you could add the dark shadows in a kind of pinwashing technique.
The beret could use a big but not too strong highlight on top, by mixing black with a little skin tone.
The fabric areas actually look good to me. Its just about bringing up the rest.