This seems really cool, but with all due respect I would like to suggest a different arrangement for elements. Still seven in total and for the most part the same, but I think we could cover more ground and not step on as many toes.

If I'm coming off as anything negative then please forgive me!
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[b][u][color=ed1c24]FIRE[/color][/u][/b]
Fire is pretty straight forward. Most roleplayers know how Pyromancy works. In some cases, Fire can also include embers, ash and smoke.

[b][u][color=0072bc]WATER[/color][/u][/b]
The Element of Water represents both water itself and ice. This is common in many rpgs, including those who have defined the genre such as D&D (which is a staple that you'll see is frequent in my set up). All of the obvious abilities of controlling liquid water are accompanied by manipulation of cold energy, which can result in creating ice. If ice and water are two separate players, a lot of redundancy is in effect instead of having more unique abilities.

[b][u][color=00a651]EARTH[/color][/u][/b]
Geomancy is the first thought for most people when they hear about powers of Earth. It's not wrong. And for the most part can be left that way. Acid can be a good addition but isn't crucial.

[b][u][color=a187be]AIR[/color][/u][/b]
Wind and flight are the core of the element of Air, but so is electricity. Many magicians of Air are masters with lightning, and in extremes can even have some control over the weather.

[b][u][color=fff200]LIGHT[/color][/u][/b]
Not me, the Element. It's probably the same as what you're thinking. Light beams, hard light weapons, healing and stuff.

[b][u][color=000000]DARK[/color][/u][/b]
Probably also the same. Shadows, mostly. Possibly some necromancy or other eldritch magics?

[b][u][color=cccccc]FORCE[/color][/u][/b]
Force is the raw manipulation of energy to apply a desired effect. Force would include things like telekinesis, gravity manipulation, force strikes. Don't think too much like The Force from starwars. Think of forces from your physics class in highschool or something.[/hider]

Maybe we could work something else out if you don't like this?