About the Renderosity Marketplace store and all the hooplah about product rejection.

Item type redundancy.

oh, yeah, the whole arena is flooded with Victoria 4 character sets.   I've bought over 150 V4 character sets.  Primarily to get good skin mats.  TEXTURES.  I can dial great character morphs, those aren't needed.  It's a lot more difficult to create great texture sets.  And out of all of those I bought, there are very few that I actually use.  Ya live and learn.   I've learned who a few of the artists are who create excellent textures for skin mats.  And some who don't.  Yet.  There IS a kind of sameness going around with the character sets for V4.  How could there not be?  It is a human figure, so what kinds of variations will be workable and wanted?  Same for the clothes.  How many different bikinis, mini skirts, nighties and such do we have available?  TONS.  Are they different enough, fittable enough, and attractive enough to be salable?  I'll quote JenX here.
"Welcome to the real world, where in order for a store to take your stuff, they have to want it."
And the stores are gonna want stuff that stands a chance of SELLING.   No matter how excellent your character set or item is, if it can't get by that line you may need to regroup and work something else up on the drawing board.
Last point:   "I spent a LOT of money here...."
ROFL!!!  That one just cracks me UP!    Hey, how much is a LOT of money?  $10,000.00 USD??
I betcha fully half of the regular customers have LONG since passed the $1,000.00 line.    Thing is, yep you spent the money.  AND you got the content or software from that purchase.  So you spent a lot of money and got a lot of stuff.  So?   What else can the Store OWE you?  Civility, respect, politeness?   I get that from them and I think we all do.   Consideration as a vendor/artist?  Go back to that "Welcome to the real world" line.   Cause you just crossed into an entirely different realm.
One caveat to being a KNOWN GOOD artist whose works do sell well is that the venue you are operating from will indeed favor your submissions.  And why NOT?!?!   Gee whiz, if I was the store THAT would be very near the top of my acceptability criteria!!!!!   You betcha New Artists have a right tough time of getting something accepted or even just looked at seriously!
These stores are a tough sell and rightly so.   Look at how many new submissions for V4 character sets come in every week.  OR new lingerie, bikinis, shorts, HAIR.   It's a tough field.  It won't be easy.  Did someone tell you it would be? 
Renderosity ain't perfect.  But they're pretty darn good, IMO.

My 66th Birthday PC Build (July 1, 2020) :  named BadMoonRYZEN!, W10Pro x64, Octal Core RYZEN7 X3700 4.05 GHz, 64GB DDR4 RAM, GeForce RTX 3060 - 12GB GDDR6, PP2014, PP 11, P12, PS-CS4 Extended & Vue 2024.

McG.