WG Yuri Cafe OCs

For a little while now I've had this idea based on yuri cafe type media for a weight gain themed one. And to have something concrete for this idea I decided to make these quick character concepts.

The basic concept for the setting of these OCs is that they all work in a themed cafe where they're all in character acting as different archetypes and in-character flirt with each other and the customers.
The cafe was fairly popular but was being out performed by the competition. But cafe did offer some very delicious food, but ended up having a bunch of leftovers at the end of each day due to low customer counts. Which left the girls taking home leftovers, and at times incorporating eating into their acts.
This then caused them to start putting on some weight, and when the eccentric manager of the cafe over heard the girls talking about it, she got the idea for a new gimmick to make the cafe more popular.
And from there the cafe ended up being a feeder cafe, with the girls eating more on the job, while flirting or while with customers. And surprisingly as they got fatter the cafe ended up becoming more and more popular.

For the OCs themselves I had the idea that the characters they portray are some specific archetypes but in reality their real personas are very different. But still they act their parts extremely well.

Ichigo/Serena
Ichigo is suppose to be a cool and collected but also warm and caring senpai/big-sister/leader type character, who doesn't mind the weight gain too much as long as the customers and other staff are happy and satisfied.
She is portrayed by Serena who, while being the tallest, is actually the youngest member of the staff and is also actually extremely shy. She is a bit self-conscious of her weight, but mostly focuses on doing a good job.

Raimu/Blisse
Raimu is grumpy and at times flustered tsundere type, who get's annoyed by her height and now her weight but also always relents to food.
She is portrayed by Blisse, who is acutally the most chill and happy-go-lucky of the staff. She doesn't really care about her weight, and is just happy to hang out with her work friends.

Cheri/Mio
Cheri is suppose to be something of delinquent type of character who has a bit of an attitude and a hot head but is very protective and caring. In character she acts like she doesn't mind the weight, using it for presence, but at times shows a more vulnerable side.
She is portrayed by Mio who is more of a party girl and into all sorts of popular trends who originally started working at the cafe for more acting experience. She used to be more concerned about gaining weight but now sees it as part of the job and has grown more interested in plus-size fashion.

Koko/Karen
Koko is a energetic younger sister/childhood friend type character who acts a bit air headed but also straight forward in some ways and was originally suppose to be more sporty type of character before the re-theming. In character she doesn't mind the weight as long as she still has people giving her attention.
She is portrayed by Karen who is actually the oldest of the servers, and definitely lacks energy when not in character. While she is a bit grumpy and tired she does still enjoy the job, but is not really fond of the weight.

Hani/Amara
Hani is villainess type character who is more full of herself and pits herself against the other girls. And in her attempts to be the center of attention she often ends up getting bested by the others. She is not too fond of getting fat but will do so to to be outshone by the other plump servers.
She is portrayed by Amara who is total girls love fanatic which was her reason to join the cafe in the first place, and absolute loves seeing her coworkers flirt with each other in character. She doesn't care much about her own weight but ever since the shift into a feeder cafe has gotten, not so subtly, obsessed with her coworkers weights.

Donna
Donna is the eccentric manager of the cafe who keeps coming up with all sorts of ideas to bring in more business, often needing to be reeled in by her employees. Ever since the success of the fatty theming she has been making sure the girls' characters are on point and their waistlines are growing.
She isn't complete profit/success driven and does care about her staff, but her eccentric ideas and behavior often means she is something the girls have to deal with.

Now that is quite a bit of info I've thought up but still I'm not sure what I might do with these characters. I'm not quite happy with all their designs I've made here. They are not that fleshed out on purpose as I wanted get something made for all of them.
And I'm not sure what all I could draw with them, especially since it's a sizable cast. I already have a bunch of OCs I don't really do much with. This cast might end up being those OCs I end up neglecting for a while. :P
Most of my OC start out as just ideas for character concepts I can image in some type of setting and then end up drawing. But if I just draw them once I don't know if they count as full on OC. :P