With something as complex as a drumkit, I'd be tempted to save each item as a separate obp, that's one item per create thumbnail.......then offer the whole file as a freebie.....

Available on Amazon for the Kindle E-Reader

All the Woes of a World by Jonathan Icknield aka The Bryster

And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...