I think it's needless to say that you've definitely improved. Your color choices are much better, and your coloring is a lot smoother. There are still a few things you could work on.

Although I know that it's your distinct style to be softer in terms of coloring, I think it would be beneficial to go darker on shadows. Darker shadows define the shapes of figures more. You could focus on bringing out the character more by applying darker shadows on him as opposed to the background. Also, darker shadows give the viewer a better sense of where the light source is. Although the sun clearly tells us where the light is coming from, since the shadows aren't so distinct it's still pretty vague. This confuses the viewer, and you don't want that to happen! You want people to focus on the subject of your art, not the light source.

Also, this is a minor thing but you could try to fix his left (our right) hand. It looks a little funky. ;D

Oh also, I just realized this. The vines that are wrapped around the building/ruins look a little flat. You have to remember to take into account the corners. Here's a quick picture to show you what I mean: [link]
Note how the vines bulge out when they turn around a corner. Adding the bulges makes the vines look like they're actually wrapping themselves around the poles, rather than making them look like they were painted or something.

That's pretty much it. Just work on bringing out the values. I hope this helped. :]