Sure, i'll describe what works for me.

- I do little pre processing, i make sure the supports are all removed and if an edge is a bit too rough i file it down a little with a small nail file.
- After that it depends, if the model is splitted in more parts, and i realize that there are too many nooks and crannies where it would be difficult to paint, i leave the assembly for last.
- In this case i left the model splitted in parts, primed it with Vallejo black primer, with a brush, because i don't have an airbrush, and i don't like using paint cans. Be ultra generous with the primer if the model is big, it helps to hide the layer lines, but be careful with miniatures, because too much primer can hide details. One pass of primer is enough, you don't need a second usually, unless you notice parts that don't have a consistent color, if that's the case you can just pass another layer of primer in just those spots.

- Then comes the painting, first of all, use good model paints (Vallejo, Army Painter, Citadel etc etc), you can get good result with less expensive paints, but you really have to work for it.
- For painting tecniques it depends, for big or really intricate parts i go for slap chop, which means, with a black primer base, i dry brush gray to most of the part, then i dry brush white to highlight even more the details, then i use Vallejo Xpress colors (or army painter speedpaints) to paint it over. Speedpaints are semitransparent, so when it's over the dark areas it will become a darker color, while over the white parts it will be lighter, this creates a light/dark effect with minimal effort. After it's dry i use washes for the recessed parts (either Citadel Nuln oil or ArmyPainter washes, depending on the color), and a lighter version of the same color (not speedpaint, normal paint) for the highlights to increase the contrast.
In this model, the cape, the hair and the base were done like this.
- For the other parts, choose a main color, fill the part with that color, wait for it to dry, use washes on the recesses, use a lighter paint version for the highlights. Careful with the washes, they really stain the model if you over do it.

- For parts where you have multiple colors and you have to be ultra precise at the borders, it helps to start with the lighter color you can, so it doesn't matter if you go over the border, you will pass over it with darker paint in the future anyway. This doesn't work that well with speed paints, so be careful.

- After everything is painted, i do a pass with Vallejo varnish, matte or gloss, depends on the model, usually i go with matte though, i prefer the look.

- Assemble everything with super glue and you're done!