Egyptian knife - Game ready - Marmoset viewer

My first attempt at modelizing props in zbrush + texturing in substance, retopo in maya and touching marmoset as well. I learned so much. Here you have some shots from marmoset + marmoset export, my maps are in 4k but for uploading in artstation I had to reduce in 2k. Hope the quality of marmoset viewer will be good to you since i'm limited to 15MB. The referenced knife is at the bottom

If you have any suggestion or free time, don't hesitate to let me know what you think of it, I'd be glad to hear it. I'll take any critics !
I have some ideas for other projects implying props with precious stones, if you have any suggestion of tutorials about the matter (not necessarily free I'm wiling to pay).

Thank you for your time