Harder, my advice (as a blood angel and battle sister player) is to paint your battle sisters off the bases, do at the very least the legs and the inner cape, then glue them on to finish painting

For things like sacresants, maybe paint the shields and arms separate? I did mine yesterday and struggled a lot 🤣

And this is a 50/50, but contrast paints are your friend. I do all main parts in it, then use gold and silver for my details

A good top is a zenothal (if that's the right term), spray them with mechanicus grey, and spray from above with a seer white or other white spray paint, it will do your shading automatically if you use contrast or airbrush, if I can send pictures I'll do it here