hi welcome! you did great, the only thing to mention is that your render has to be of the submitted .vgm file, not the tracker output - i went ahead and replaced that for you

notably, samples don't get played back in .vgms for this format (that i'm aware of), so something is unfortunately lost there, sorry. if you can find a vgm player that represents that though, feel free to link me to a replacement, drop me a line on my profile, etc. i'll update it again if need be

aww I don't know which tracker you were using but if it was furnace, you can go to File > Export > VGM to produce a .vgm file.

Furnace can actually export samples in VGM files but you will need to activate the "direct stream mode" option in the export settings. This was discussed in more details here if you are interested