I would appreciate some help with ideas for expanding my tattoo!

Hey,

I am looking for some inspiration for what and or how i should expand my tattoo, down to my wrist (under Gon) and on my inner forearm!

My thoughts so far:

Inner forearm - godspeed killua with color in eyes and lightening Wrist under Gon: hisoka sitting in heavens arena when he stops them from progressing using ren.

If you have better/more unique ideas or other characters entirely I would be grateful!

Thanks ☺️