Basically, looking for pictures that have a bunch of images hidden inside of them. Something that would take 5-10 minutes of staring to see everything. I found a similar image to what I'm looking for on google that I'll attach, but really looking for something a bit more psychedelic? Portrait format would be appreciated and preferred, because it's going to be used on my phone, but I'm sure I'll enjoy landscapes just as much. Thank you! =)