Hello!
Are you planning to create some sfx packs (especially for pixel art games ;)? I guess it is much easier than creating music packs and it could be additional promotion for you because if people searching for sfx, they usually (I guess because my experience) skip all bgm and vice-versa. When people see something they like they can enter your profile page and maybe other your packs... If you will create at least one sfx pack, it can attract (I guess)big sector of audience you miss now
I also have one addition to comment about splitting zips for one archive for one file format. It is a bit annoying to download 200-300 MB of archive when ogg or mp3 (that weights much less than wav) is enough for your needs
P.S Thank you for your awesome music. I enjoy it. I even run it in background when writing code :D