Thanks, Konrad!
Well, of course I can imagine doing new things or doing things differently, and then try them out sometimes, and see if I like it or not. In general, I'm painting with thinner colours and mixing more of my own hues, and use shades more to define the contours and recesses of the figure, not the hue of the finish. So I'm painting more in layers and less with shades than I did ten years ago. And I choose the primer according to the finish I'd like to see, so don't use just (or predominantly) black anymore. Sometimes I use two primers to get the direction of light effect.
But I'm not watching Youtube videos or collecting reference pictures and consciously trying out the different techniques the world-class painters do. I'm reasonably sure I could paint faster now than ten years ago when I started, and still get better results. But I'm not trying to paint unit after unit now, but add to my armies leisurely, or indeed paint what I will - like the bears above. I guess just painting - and liking to paint! - will improve anybody's skills eventually.
The last time I timed my painting I could do a single 28mm foot knight from primer to finish with decent basing in about two hours. Previously, I've come to the conclusion that I generally just cannot go under an hour per mini, even with assembly lines and/or simple figures, unless they are naked skeletons or the like. What I've done since is split the work, just doing a colour or two on half a dozen figures per night, and paint whatever inspires me at the moment. In this manner, I've got perhaps a hundred models belonging to perhaps ten different units/themes at different stages. Then, when the time is ripe, I can choose five or ten which I fancy at the moment, and just paint them ready and do the bases. Bang! - minis ready after an indefinite time at the corner of the desk.
I've found out that I actually need to dust the minis when I return to them. And dust the brushes too.
And yes, converting often takes more time per figure than actually painting. On the other hand, I've come to love well-defined metal and resin quality figures, and like to paint them one-piece straight from the box.
This Sunday I finished some walls and a Reaper fox:
-Z