Never smoked pure DMT, but have taken Ayahuasca many, many, many times last year and have smoked Changa a good few times. About 98 to 99% of my experiences (low, medium or high doses) have been with eyes open and exploring the external world. Anytime i close my eyes, the only thing i'll ever really see are faint images, but if i have music going i see visualizations. My experiences have never really been visual, it's mainly always been feelings, emotions, personality changes, perceptual changes and perspective changes, insight, energy boost and mood lift, but hardly ever visual. Even on my highest doses (8 grams of inner Mimosa root bark (waaaaaay too much imo/ime) and 4 grams of Rue seed, it never really got visual, it's always been bodily.
I find Ayahuasca/Changa can make one feel complete and total orgazmic bliss and love, as long as the mindset is right and the right music is there. Sometimes though, things of course don't always go as expected and you freak, think you're dying and purge, but after the purge, things are great again.
Shit, 3 capsules of Mimosa powder, after taking 300mgs of Moclobemide, i was freakin' cuz i didn't expect what happened to happen. I got that electric buzz feel on my scalp and i could feel the feelings of terror rush through me, and the only thing i saw, was with open eyes things had a sort of bluish tint, i kept seeing bright spots almost like fireworks on the 4th of July, and then i saw some sort of what looked like Egyptian hieroglyphs but am not sure and didn't get that good of a look at em' cuz i was scared and freakin' out.
Point is, low doses of DMT i find very pleasant with Harmalas or Moclobemide, especially when Cannabis is involved, but mindset needs to be right. High doses of DMT are awesome with Harmalas, but scary as hell with Moclobemide. Maybe one day i'll be courageous enough to smoke a high DMT dose using some Enhanced Leaf, or take some more with Moclobemide again and smoke some Harmalas on top of that (might also be able to extend the experience that way).