Ah, as far as I'm concerned, I generally prefer when graphics are custom-made - even if they aren't all that good - to premade artwork. Especially if someone uses premade artwork in an inconsistent manner (note: it can happen to custom graphics, too). I find drawing to be a useful skill, too, because then - even if you ultimately aren't making the final artwork - you at least can convey through picture what you imagine the character to be like.
(this is also one of the reasons I decided to focus on graphics department this time - so that I could focus on honing my practical graphics skills)
When it comes to custom music - I appreciate when it's there, but I perfectly understand if it's one of premade tracks instead. With all these Jam commitments few people have time for making own music, and it requires some skill and experience too (for graphics you can fall back to MS Paint, for music you need to download and get familiar with one of music-making programs, and they can be pretty hermetic).
Also, I enjoyed PUSH somewhat, though the intro with no apparent skipping and wonky death detection hurt the replayability. I guess maybe the time spent on intro would be better spent on taking care of that issue? Then again, it's hard to tell how long it'd take to fix, and it needs to be spotted during testing in the first place, too...
(by the way, the artwork in Wizard Pub Crawl was made by Siolfor the Jackal, except for these collectibles which were apparently placeholders? But yeah, HayManMarc took care of the programming this time)