Yeah the keys are Dye Sub Vortex (KBC) OEM. Honestly, I you can barely see the legends so I wonder if I should have gotten blank. However, I kind of like how the legend barely shows. It gives it a little extra coolness imo.
As for engraved keys, your board still looks pimp man. I actually canceled my engraved order and went with dye sub after people's recommendations from here. So I cannot tell you if these are better. But if the engraved doesn't bother you, then it looks good to me! If you ever want to move to dye sub I am sure someone from here will buy those from you lol.