lol Oh yes. . .my writing too - I often want to redo it, but rarely have time. (Since I'm not interested in publishing at the moment, I have no real incentive. No telling what may happen in the future)
But keep in mind, it IS your picture - and you *can* revisit and try it again later, if you so desire. But wait awhile before you do. . .learn some stuff and come back after you've grown a bit and maybe you can hit your goal a little better. Now. . .whether or not you ever actually get around to remaking it is another matter. I don't much. lol
lol No one. I never went for being published. Oh, I did at first, when I was a kid. But as I got older, I started enjoying it for doing it, and creating. Then I started learning more about the publishing industry - and the madhouse that is and I started losing interest in it. Not writing, just publishing. Now, I read the troubles authors, and readers alike are having with the whole thing and I REALLY want to stay out of it. Far more trouble than its worth, In my opinion. If I write something I feel I want to send out into the big bad world and be read. . .I'll just publish it myself. Although, I reserve the right to change my mind at any point. lol Nah, I write for the love of it - though, if I could wrap my head around journalism or something, I might look into some freelance - but my stories? Uh uh. Mine! For now. lol And, on topic - there is the problem of writing, that once you 'publish' and release something - that IS rather locked into place. You can't go back and change details. Nope. Images are far better in that aspect!
But yeah, learning of horses is good. Horses are wonderful. But yeah, particularly with your art - you can always revisit and tweak. You could probably just call it 'version 2' or whatever, so you have a record of your earlier tries - and eventually you can look back and see how far you've actually come. Even though it doesn't feel like you've moved much at all.