Gamera's advice is good. Figures take a lot of practice and there are some great tutorials on Utube. Even though I'm usually pleased with the result when I finish one these days, I'm always looking to improve.
As has been previously stated, the detail is soft, but you can do small things to improve them. Use the point of a modelling blade and slowly woek it under things like collars and pocket flaps. You dont need to go very far. All you are trying to do is to create a seperation line from the surrounding molding and then gently lift the edges. This gives more of a 3D effect and provides a good base for creating shadows when painting.
My basic process for painting figures is as follows:
1 Study the figure and your references before assembly and list what you want to do and in what order.
2 Assemble according to plan and undercoat.
3 I then paint the figure with enamels in the basic colours.
4 Let dry for 2 or 3 days and then work over the figure in oils thinned with white spirits using a cardboard pallette.
5 Leave for a week minimum and then run a pinwash for extra shadows if required. The thing with oils however is that you create the shadows and highlights within the painting process. Learning to blend the colours is the real trick. Practice, pratice, practice.
I usually start with face and other flesh areas. I paint the white of the eyes first and let that dry. I then paint the eyeball in by using a drop of colour on the end of a toothpick, noting where the figure will be looking, left, right, etc. I then take a darker flesh colour and paint from the nose to the edge of the cheekbone, just touching the edge of the eyeball. I do this on both top and bottom of the eye. The thing to remember is that you want to minimise the amount of white. When I am happy and all is thoroughly dry, (and it may take two or three attempts before I am happy), I apply a drop of gloss clear to the eyes.
As has already been stated the detail on these figures is soft making the faces somewhat challenging to paint, but have a crack, use whatever method works best for you and don't get discouraged. Practice, practice, practice.
Any this is my system. Its not the only one, but it works for me.
Good luck, have fun and as Gamera said, spend some time watching the painting tutorials on UTube.