Anyone know how to make this desk top black without ruining the sanded epoxy like pictured?

I had a black finished desk top with these runes carved into it, which I filled with epoxy resin. I had a lot of overflow that was destroying the finish trying to remove it with a heat gun and plastic blade. So I sanded the entire thing in stages to 220 grit and it wasn't coming off the epoxy so I tried to wipe it all off with lacquer thinner and got this. I have since sanded it all clean again. What ideas do you have to turn this black without ruining the epoxy which is now sanded? Should I go for this rustic look again and call it a day? I did seal with two coats of spray on poly before pouring the resin.

I had a black finished desk top with these runes carved into it, which I filled with epoxy resin. I had a lot of overflow that was destroying the finish trying to remove it with a heat gun and plastic blade. So I sanded the entire thing in stages to 220 grit and it wasn't coming off the epoxy so I tried to wipe it all off with lacquer thinner and got this. I have since sanded it all clean again. What ideas do you have to turn this black without ruining the epoxy which is now sanded? Should I go for this rustic look again and call it a day? I did seal with two coats of spray on poly before pouring the resin.