Gray workout

[Soala]

All type of comments on this are welcome.

I'm trying to work a lot with gray colours on my graphics since I've never done anything using that much of gray, so I figured I'd try and make something out of gray only !
I am trying to keep quite a classic style, and got some inspiration from pics1 castle tiles.
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(The top of it is supposed to hold some "magic" fire by the way, which is why I made it like a plate.)