I'm not sure if this is the correct place to put this, but I just wanted to share something that may or may not be well known.
Whenever I see composites done for live-action and/or CGI scenes that are combined with Stop-Motion, I notice that it doesn't blend in well. Now I know I'm nowhere near being an experienced animator that can give good advice, but for those who want to know a little trick that I've used for all my composites, it's something called the diffusion filter. It's great for blending in multiple composites. Again, many of you might already know this technique, I just wanted to offer a tip or two.