first icon

[LinkD]

i made this using gimp, was going for a poisoned dagger but i guess it doesn't really look like one, since i couldn't draw a good hilt...

 

[takakenji]

could be a poison fang

 

[antihero]

The green light should be reflected on the metal surface of the dagger.

 

[Paladon]

The green light should be reflected on the metal surface of the dagger.

Just be careful that you won't overdo the reflections.
It's important, that you improve the definition of the dagger. With greenish reflections only, the dagger will simply blend even more with the background than he already does.
Next to that, i don't see any massive problem.

 

[Hawkwing]

It's a bit long for a dagger, but it would work as a fang (as taka said) or some sort of sword.

 

[Traxamillion]

Not bad for your first icon.