That looks much, much better.
References are good, but most of the time I am too lazy to go looking for one. They are good because they will help your anatomy, colouring, making clothes look more realistic, and, uh, that is all I can think of off the top of my head. They basically are a quick and simple way of seeing if what you have drawn is actually physically possible or not.
You probably wouldn't need to use references for every pose of every panel, but references will help making your poses more natural and expressive and dynamic (i guess?) than using the little wooden model-thing. Oh oh, they will help with things that you probably wouldn't notice like centre of gravity, or showing movement. Then again, the whole extensive use of references deal might be better if you do all that for standalone pieces, rather than your comic, seeing as you have said you only have a certain amount of time to work on them. Maybe more like if you are doing character sheets, or pictures on them for your website, then using references would be good because you can spend short amounts of time on the pictures over a long period and not have to worry about churning out the stuff.
References really do help a lot, though. Any examples I can think of for the last two pictures you have posted though are more about colouring than anatomy, other than hand issues (but hands are hard, so they are understandable) and some of your poses seem awkward if someone in real life was doing them.