FInally somebody is taking the effort transfering those mmd animations into VaM without the need of the MMD player plugin. I am giving it 5 stars for the pure effort! I have a few suggestions for you you maybe want to consider. Just want to share my person experience here because I have also translated some MMD files like you did but sadly in my studio routine there is absolutely no time left messing around with MMD. That´s why I am reeeeaaaly freaking happy somebody does it now and shares it for free! WOW! =D Well Well so here comes the technical part...
I know you simply recorded the nodes using a simple trigger&record setup.
1.) MMD animations tend to be wonky as fuck and mechanical. I also tried to simply remove for example the abdomen/pelvis and so on joints from the record. But as far I experimented the result was a wobbeling behavior. Overall if you remove too many important nodes your animation is less mechanic but due resulution loss just a shadow if itself and wobbeling entertainment. My tipp: record ALL nodes and adjust it´s physical behaviour!
Adjust the damper, spring, joint strenght and so on of ever single note for every specific song. This takes time but gives you a HUUUUGE plus in authentic movements. I know it´s time sonsuming at the beginning but some nodes always need a specific setting for every song. So you´re later just double it and can come back to your experience.
2.) One thing came to my mind whatching your scene was "where is the floor and why is this so dark? So yeah I know because of the raw translation you did (point 1) floor collision would be a huge mess. About the darkness...yeah you´re hiding a bit the wonky movement but thats totally ok! Later you won´t hide anything but show in a bright shining light your genius translation! I hope for it!
3.) What a great idea having the lyrics in the background! Nothing to add here. Well done =D
4.) Lip Sync...? Yeah I know after the record the mouth movement is gone in vams abyss...anyway I would recommend using the LipSync Plugin by AdamAnt in combination with a acapella version. Nearly every mmd animation (especially the known ones) use pretty well known songs and I bet you can find acapella versions to add a lipsync to it with the plugin.
5.) Sound in general. Please use only quality mp3 files. It´s pretty distracting listening to the song as if it would be shouted through a metal pipe.
Again thank you for your contribution! It seems like the community is in a heavy need of these translations! :P Keep it up and please note this is not any form of attack or something. Just a few sidenotes from my personal experience and some tips I think could help!