I am also loving these art contests a lot. I literally missed many of them when Roobet started it in the initial days and months. They were coming month after month and many regular faces kept winning the contest and made more than 2-3k USD easily.
That was starting point for me to get started with art contest. Well though I submitted most excellent artwork in the last session I was not selected for it. However I will try my luck one more time. They are really good at exciting us and have good time making the imaginative arts.
I never participate as I have no talent at all but it always nice and interesting to see the artwork! Often, the same names indeed win but every time I am impressed by the quality of the art!