Private Eye Doll certainly has some luxurious portraits.
The game is composed of three chapters, with the second one split into two large sections IIRC. The first chapter is excellent. It has the best pacing and progression of any adventure game I've ever played, and is literally the only time in recent memory that I was not able to put down my controller for hours on end. If the rest of the game had been this good, I'd be shouting about it from the rooftops.
Unfortunately, the thrill-around-every-corner pace isn't really there in the next two chapters. It tends to take longer to trigger events, and when you do, they're often quite mundane compared to the first chapter's. It's far from boring, don't get me wrong, and I appreciate that they tried to mix up the format and settings. It's just that it's suddenly so much more standard.
If any programmer wanted to tackle this, I'd be interested in translating, but you've got a tough situation where nearly every line in the game is voiced, and some scenes don't have text boxes. Basically, you would have to embark on a massive dub project with probably a good few hours worth of dialogue to record.
The first three PC-FX Anime Freak discs each contain one very long and exclusive Private Eye Doll anime episode. They connect into one story, and it's not bad. If anyone ever made a translation of the game, I'd hope that these would be subtitled and released at the same time as a supplement.