What would you say is the recommended height and width for each pixel art?
That really depends on the image and detail, usually you would only change one of the values and leave the other to be limitless in my opinion as to keep it in proportion but even then I don't ever remember seeing an image out of proportion so it must do this by default regardless of your values. All that said I do think 100 is probably a good number to set to for a middle ground distance.
As the most recent official version (1.1.5) does not include the latest blocks (andesite, prismarine, red sand, etc.) I tried modifying the files manually to include them--and it actually ended up working.
The modification was really only intended for my personal use, but I figured, why not provide it here until an updated, official release comes along (if ever). If the author of the tool disapproves or this is somehow against forum rules, obviously feel free to remove the following link: