Ruby

Probably not the best place to post this. You may want to look into making a pixiv account.

By the way, what is that outfit she is wearing?

thank you

What do you all think?

That's a vague question. Are you looking for constructive criticism? The image you posted looks like a promo image for a character asset. Was that your goal? I like the shoes you picked to go with that outfit, the 'holed' style pattern complements the outfit nicely. The skin tone, eye colour, and hair colour also all work well together.

I'll point out some things I noticed in your render you might want to adjust.

In the pose where "Ruby" is lying down: The visible earring seems to be hanging at the wrong angle. You might want to adjust it forward a bit. Next the necklace she's wear is tight to her chest, gravity would have it hanging a bit away, and straight down. The render does something 'weird' on her chest near her right elbow. I'm not sure what caused this, nor how to fix it. And lastly, the model looks very young to be wearing high heels. I suggest simply attempting to remove (make invisible) the heel part of the shoe (if possible). I think this would give the shoe a more gymnastic look.

In the pose above the word "Ruby". I'm guessing she has the earrings on but again maybe they are not hanging properly as I think the right one should be visible, but it's not.

Anyway, those are my thoughts.