So this gallery troubles me just for the simple reason that I know I told TumblThree to pull reblogs. But I don't know the specific reason why. I think Madclown24 did a number ONCE where they were like "Okay, someone commissioned me. Better let them post the commission and never post it on my blog myself"
The WEIRDEST part though is that I know for a fact I've picked up in this deal posts from the likes of TwistedGrim and the like. But there are some pieces where I can't be too certain if it's like some sketch piece from some other artist or the like.
Worst is seeing stuff from whole blogs I apparently never bothered to put on the scrape list, but I know I followed
So basically, I admit upfront this thing isn't like cleanly "Only madclown24 tumblr art". But it's a better shot and effort that another uploader puts in
Your effort and explanation are more than satisfactory. Problem with so many artists, especially if they aren't notable enough to have an audience of thousands or more... Is that they do exactly what you're rightly complaining about. Not consistent in uploads, they destroy their work, portfolio is incomplete, sense of entitlement and ownership to an unreasonable degree (retroactive defacement)