I spent a good dozen hours in MakeHuman recently, seeing what I could and couldn’t achieve in it. I found that for realistic human forms, it really can’t be beaten! However for the more cartoonish form I want to achieve, it doesn’t (at time of posting) have suitable starter meshes and morphs. (the Manuel Bastioni Labs Blender plugin has a number of Anime-style character start-points, however anime is not the style I want - too leggy, for starters !)
So today I went into work (Saturday - no one there, but air-conditioned in the 38deg Australian summer is very nice! And there is a Creative Cloud site licence and a Windows PC there too, neither of which I have at home!) and spent a good several hours pushing Fuse about and beating against Mixamo’s web interface with reasonable success.
I found the source of my Fuse avatar’s ‘lower-lip boobs’ to be a crufty custom-deform left over from some time ago, which - once I knew what was causing the issue - was easy to fix. I also found that it is possible to custom-deform attachments (in my case, dragging the right of the hair’s fringe over the right eye), though annoyingly, these deformations aren’t saved in the Fuse datafile so I got very good at doing that particular activity over the day!
End up, I am much happier with my Fuse-created avatar now. I ran through all the (rather limited in style, but very configurable in colour/texture) clothing options and made a bunch of versions of my avatar to use as circumstances require. And some I may manually modify the textures on at a later date if I need.
I also solved the butt-pinch look of the ‘Athletic Pants’ by using ‘Leggins’ instead and changing their materials to that used by the ‘Athletic Pants’. Much nicer looking from behind!