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I am also of the same opinion that even if we are slightly interested in these sort of art contest then we should take part in it and learning and taking part will boost your self esteem and make your skills sharp even if you are not winning.I am hoping to take part in the upcoming one of Roobet and diversify my hands on this field also.
By the way you also have some good creative skills but the fact is there are some professional like Maus0728 who wins most of them and he is skilled and professional artist from whom we can learn lot and how to bring up artwork in attractive manner.But still try your best and who knows what the team might like.
Thank you for your kind words! As I said, I don't feel offended when I win nothing from this contest because I enjoy the process of creating something arty, and I would never do it if there weren't at least a slight chance of earning something from it, either merits or money. Sorry for being so materialistic, but I read(or was it in a movie?) some time ago that art should sell itself, and I accepted the idea, and I've never changed my mind on the topic since then.
As of works by Maus0728, I think all of us here like them. No doubt, he's a pro.