ok real attempt at advice...
I think your lil Vikes look pretty darn good.
Especially given the 1.5-2 hours you are finishing them in.
I suppose the best way to speed everything up would be to base up several on your 60mm bases, then kind of do it \"assembly line\" style.
First paint all the spots that will have red paint, then blue paint..etc etc...
Once done with base coats, go back to mini number one, and start with your highlighting/shading. Usually this way also allows some drying time between the coats and keeps you moving on the next task.
Hope that helps...