Painting miniatures is not as difficult as it seems. If you take your time, put some effort into it you can paint some really nice miniatures.
I find their a few basic rules for painting that if followed the end results will be something you will really be happy with.
Take time to properly clean your miniature and assemble it. Taking the extra time to make sure you remove all mold lines and test fit parts before gluing them together will give you a much better figure to paint. Nothing worse than putting primer or paint on a figure and seeing mold lines or gaps in the model that you missed.
Once assembled but before primer, wash it. All figures have some sort of mold release on them. Plus our hands are oily so when we are working with the figure we transfer those oils to the model. 5 minutes with a toothbrush, some mild dish washing soap and warm water will give you a clean surface to apply primer. I use Dawn dish washing soap for years and it does a good job. Let air dry after.
Use a good primer. For decades I have used nothing but Krylon Black or White surface primers. Most of the time I use just white but on these models I am starting today I first gave a light coat of Black Primer followed by a light over spray of white. This leaves some shadows in the recesses yet gives me a pretty bright white surface to apply paint to.
Soon I will start applying primer with an airbrush, but I need to fix or replace my current compressor first before I can do this,
Enough of rules for now, soon I will start applying paint.
So here are my figures ready to apply paint to. I will let the primer dry a few hours fully before I start applying color
While the surface may appear a bit rough, its actually quite smooth. This is because the black primer is showing through the white top coat a little and looks grainy.
Next up.. We paint!