For a 0.1 version this game has a lot of content, and is incredibly well made. Eva delivers, and oh boy, it's even better than I expected.
Graphics: Easy 5/5, characters are nicely drawn, shading looks amazing, backgrounds are detailed, UI and Menu presents itself really good.
Characters: Characters are pretty diversely looking, have distinct personalities, and most importantly are (so far)well written and seem believable. Both Ian and Lena are pretty relatable (at least for me). Also, holy shit, Ivy is so fucking hot, easily my favorite so far. 5/5 for me for the time being.
Gameplay: I like the introduction of more expanded stats system, instead of the generic 'blue point good', 'red point bad' that we got in GGGB. Two playable characters and lots of choices so far. 5/5 gameplay as far as VNs go.
Music: I think it's the same generic stock music that was present in GGGB, but it doesn't sound bad to me. 3,5/5.
Fappability: Not much erotic content so far, but the photo session images were pretty nice. 3,5/5 slightly above average fap so far.
I'm giving 5/5 starts as a credit of trust, because Eva hasn't let me down with the GGGB, and ORS has a lot higher production quality.
Sorry for any mistakes, my English is not that good.