I've painted a couple of figures over the past year or two but this is my first army having tried to get into it a lot more these past few weeks.
I did them all one by one going one colour at a time. Printed on my 3d printer, comments and suggestions are very welcome. I would love to get a lot better!
Great job! It's a whole different thrill to get an entire group done isn't it?
The most important advice is to have fun and keep painting.
The Warhammer 40k community keeps a wonderful list of mini painting YouTube channels that can show all different types of techniques.
Your base colors looks really good so I would suggest playing with shade paints and highlights or basing as next steps to bring them to another level.
Man honestly it takes so long by the end I am so defeated there's no way I could get the willpower to do any shading or highlighting. I imagine with a proper set up and an airbrush it would be much faster and easier to do the basic colouring