New O.Cs - Marigold and Rosa

I came up with some new O.Cs lately, all of them are inspired by flowers.
I've only drawn two of them so far (which are my favorites), "Marigold" and "Rosa". The other two (which I haven't drawn profiles of yet) are "Lilia" and "Viole".
These four are part of a new series that I've been working on since the middle of January.
It doesn't have a title, or a plot yet... but I'm currently working on it.
Don't worry, I'm working on DV, too. I'm just trying to decide what Ch.1 will be about.
I've already decided that the two main characters will be Miku and Tei (yeah, it's Teimiku), both which are enemies (well, only Tei thinks that way lol). So it should be coming out pretty soon! ^^
Anyway, back to the subject!

Marigold

Name: Marigold
Alias: Mary (Rosa gave her the nickname ouo)
Age: 15
Birthday: April 10
Likes: Fashion, floral patterns, flowers, singing, spring, pink, rabbits
Personality: Mature, very caring, gentle, kinda shy
Description:
"Marigold is a mature girl with a very caring personality. She has been best friends with Rosa since childhood, and knows quite a lot about her. As described by Viole, she has a very graceful aura and looks similar to a ballerina. Often called "Mary" by her friends."

Rosa. (She's my favorite *O*)

 Name: Rosa
Alias: Rosie
Age: 15
Birthday: May 6 (This isn't Miyu's birthday... right? oAo)
Likes: Red, black, red velvet cake 
Personality: Cold, often sarcastic, makes fun of her friends... a lot (but not Mary, because reasons), really caring once you get to know her, brutally honest, easily irritated
Description:
"Marigold's best friend. Rosa is a very cold girl with a rather blunt personality, making her hard to approach. Despite this, she has a very caring side which she shows to people she really trusts. She acts as if her friends are idiots, but she deeply cares for them. Nicknamed "Rosie" by Marigold. (if anyone else uses this nickname when talking to her, she gets very annoyed)."

And finally...

This was just a quick doodle that took only 10 minutes, so I really didn't try too hard, lol

Rosa and Mary are a couple. That's why they have a really strong bond. But you probably expected that. uwu

EDIT! (March 17, 2017): The name of the series is "flora"~