Also the more you practice the more better you may become, Also seeing peoples types of art style may help and inspire you, But enjoy these things. for it really will matter, But!, taking your time in these will massively help not like feel it being forced upon you

Also about not being good enough, You dont really need to be good enough, The more is less and the less is more. But another thing. A fail can either be a stepping stone or a downward fall if you let it be. [This is just bad advice i guess.]

And why would one be ignored by the challenge producer or the host of the challenge?, Wouldnt it be reasonable to see and rate them overall?, That almost rarely happens to be honest, Even one time i thought i was gonna be ignored i wasnt ignored, The person who hasnt is Minermaster, Even if he has had 10k or 8k at the time, He didnt ignore a single one, Maybe but i didnt really observe.

Brother. Even if there is a challenge, you really shouldnt think yourself as a failure, But even if that is the case, Improvement and a step up has been achieved, Skills growing.
It is not only about the challenge, It may be for fun or may be for seriousness, but that doesnt mean you really have to worry about winning or losing.
The one whos losing is the one who doesnt have had fun with it and thinks of only winning and winning.
The one who wins is the one who have had fun and has thought of many ideas to put in because of their motivation, They majorly improve alot more than the losers. (Not the winners of a challenge)

....maybe