>>379749664
if you know nothing about blender or 3D modeling, do what I did and kitbash
Think of a concept first, and then go to vrcmods and find something as close to your concept that you can. 
Take it, recolor it, add on extra bits from modelers resource, change the shaders for good effects, and you have a decent avatar with less than a few hours invested .
note: works best with gimmick avatars who can look bad 'ironically'