Nice work, hideki! Likenesses are tough for me too. YOU GOTTA MAKE HER BOOTY BIGGER!!!
Her face shape looks good, but I think her lips are a little too small. Rina's are pretty full and pouty (I think she's kinda got a little curl going up too), yours look more on the thin side. I thought Rina's nose was a little more bulbous, but pics I'm looking at don't seem to show as much as I thought. I think I would've drawn it a little wider, with the tip (I don't know the real names for parts) a little bigger. Also, the bridge of her nose doesn't look as concave. I had trouble finding good pics of her nose so I'm not so sure about this. I would say ditch the reflection copy effect on the floor. I think it's one of those things that looks cheap, like when people just throw on filters to add more.
I hope it doesn't sound like I'm just raggin' on your work. It's a really good drawing and I hope you post more. You could probably make a thread in the
Freestyle Flow section or maybe a Ladylove art thread where anyone can post up anything creative they've done. I'll jump in with some drawings of my own too.
I'm always slackin' when it comes to this thread. I don't come to this section much so I'm always forgetting to check on women I like. I gotta go back and figure out what I missed.