RWBY's look has evolved like crazy since Volume 1, and I'm in the process of making a video on all the broad things that have changed Volume by Volume. I'll upload the video hopefully within a week, but here are some stills of what I've made so far.

There are comparison shots of this for every Semblance with a visual cue, and yeah even environmental things to show how environments have changed too. The video seems to be somewhere between fifteen and twenty minutes long at the moment. Would you like to see it when I'm done?

EDIT: More stills added to gallery

EDIT: Even more stills added to gallery. I'm almost done with the video. Perhaps tomorrow I'll put the last clips in and finish cleaning up the audio, then upload it to YouTube and leave a link to it here. I plan on having a regular presence/upload schedule on YouTube, and this video has been over a year in the making, though for most of said year it was on the backburner for life's sake. Future videos are gonna be much heaver on my personal take than this one is, since this is mostly "Let's look at the visuals in RWBY and compare them." but it's not without a personal take either. They also shouldn't be as arduous of a process since I'm trying to get every last detail in.

EDIT #3: It's finished! Link