Sand Wave

[Sin'dorei300]

These are vague representations:

I suggest you to increase the definition, make the details more visible, use more color variation, and shade them.
I also suggest you to observe some pics/artworks/icons having similar themes, for inspiration, to get an idea about shapes, details, colors, light impact, motion, etc.
In the actual state they are too simple and vague.

 

[Jozz]

I'm not a designer, nor an artist. But I do enjoy the making of icons, so if I grow correctly I might get closer to being one. I will take the time to do some tutorials in the near future and I can't wait to get better
Thanks for being supportive!