Hi Sameek,
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Ella Svahn release a very good cgfx shader for eyes, check it out for insipration ( or implementation )
CGFX eye shader -
I’m currently implementing clothing in my character customization tool in UE4, but I’m doing everything inside Maya when I create the various blendshapes…I wonde, if you create a cloth in marvelous designer to expand the library, how would you “connect” it as a blendshape or add it to the character, considering that it need to take into account body variation and shape? not sure if I miss something or UE4 can “append” an external mesh and add it to the main skeletal mesh, taking into account all the deformations
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Retargeting helps, but you can set limitation/range to rotation/scale, in order to customize/modify an animation directly inside UE4…I guess that some additional constraint are needed in order to set the animation to be executed properly, right now in theory should work
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I suggest you to start with the new skin shader available with 4.5 and expand it from there ( add specular, translucency and gloss ) and expose the values you need to set/randomize the character skin. As far as I can see the base shader is pretty **** good and if you do a search on the forum you’ll see pretty nice experiments
Are you seriously thinking to share this tool for free?
If so you’re totally mad 
Just kidding, but this would be a huge gift for the community 
Honestly if I manage to do what I have in mind I was thinking to put the tool that I’m developing ( quite similar to what you did, but with more specific features ) on the marketplace, mostly to buy advanced stuff for mocap for personal projects
Cheers Sameek and keep it up, can’t wait to see a video demonstration