It looks really good - better looking than a Raptor.
The fins look very small in proportion to the overall a/c. As commented, some similarities to YF23. Looks a bit like they've had a half hearted attempt at Stealth though - looks like they stuck to the expensive equations at the front, then ran out of cash so it goes more Su-27 round the back.
Impressive stuff; makes Typhoon look a bit 1980s unfortunately.