What stood out to me was the graphics in Crash bandicoot series. They always looked very good compared to other games which has the weird jumpy textures and very rough looking meshes.
I must say going with very minimal texture on Crash is intriguing. FF7 also uses very little I believe during combat, they all look like color shaded mesh but it clearly looks good on Crash.
All these development stories from 90s is fascinating, especially because there's a fond childhood attachment to the PSX.
On one of the Playstation Underground Magazine discs there are entire series on the development on Crash Bandicoot. These are truly a gem. Myself having watched the entire series.