I applaud your desire to get new Peds into the game, and I'm not trying to discourage you & wont vote so it doesn't show as only a 1 star... but these SA peds are well quiet frankly LOW quality. Its not necessarily your fault, its the fact that these are from a game that's rather old. I was 1st out on the PS2 in 2004 and then a few years later on the PC & Xbox in 2005 and then Xbox 360 & mac three years later in 2008...

The peds are dated, pixelated and flat--not looking 3D... Take OG LOC, his chain around his neck looks like its part of his skin.

I can suggest several websites where you can buy either really cheap "people" that you can bring into GTA through using the various software you're probably using for these guys & get a much better result and reception from the GTAV modding peeps.

FREE (a good cheap start)

http://open3dmodel.com/category/character (great place to start, free and plentiful, browse and in minutes you'll see where some of the mods from here came from)...

http://artist-3d.com/free_3d_models/02anatomy_design.php

https://renderpeople.com/free-3d-model/

A better start, not totally free but not breaking the bank, especially if you start up a patreon & crank out some really good work---you can pay for your purchases and then some. I'm sure there's plenty of people who are cranking out peds who can guide you and help you get the hang of it if you get stuck...

https://www.cgtrader.com/3d-models/character (a few free ones, mostly purchasable, a wide range of all prices. I've seen some REALLY GOOD ONES for as cheap as $20 and they look just as good as someone elses whose asking for $300)...

https://secure.axyz-design.com/metropoly-3d-people (a mix of free and purchasable)

https://renderpeople.com/3d-people/ (a little pricy, ranging from $50 to $500+)

https://www.cgtrader.com/3d-models/character (a 3 free which look amazing) as well as some very nice premiums, these guys are pros....