Posted on Jul 22, 2020, 8:21:59 PM UTC
Hi Seepran,
Electricity/lightning is a separate element which will be introduced later.
If you did want to choose sky and draw your characters element as lightning, that's pretty close enough that it is ok. You can interpret these elements loosely for your artwork. But as far as how the mechanics work, it will be counted as a "sky" elemental attack, even if your drawing depics lightning.