this wand looks like containing some orange soda water in it
i would suggest you to add yellow and minors of yellow to make it more fiery, else you can make it whole bright yellow, and in place of fire, place some "light soruce" such wand could shot with holy power ^^
ooo after i looked more carefull i see yellow thingies to make it more fiery, but still looks like soda
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Comming back to silvering armor, i would add some brown touches, if you will allow, i will remake it and show u what i mean
done: