I really don't like the /t, /s and /e with the closed aperture (particularly the /e looks very odd in a word) and the /z doesn't look anything like a /z (in fact next to an /a it's pretty damn confusing since the top is the same; in the word 'lazy' I first read 'laay'). Except for these letters though this is quite an impressive typeface. I'm not usually a fan of expressive display typefaces like these but Tango seems to be quite perfect for logos and short display type for magazines.
The poster looks great, by the way. It's an unusual way to present a typeface but for this kind of type it's working very well. I do think the tracking of 'typeface' is too tight though. Is the typeface kerned like that or did you reduce the tracking? I guess it doesn't matter that much as one could always increase the tracking manually.
The swash /y looks quite attractive but I would make the bottom right curve a bit less rounded to match the curvature of letters like /c and /e. Actually the same counts for /g (which is a really cool design in general) as the curving of the tail looks a bit sloppy.
Looking at the interactions between /t, /y and /p makes me think you can do a bit more with that. I guess it wouldn't hurt to make the bowl in /p and /q a bit taller so the bottom horizontal stroke of /p aligns with the inwards tail of /y, or alternatively you could add an OpenType feature for /yp so the bowl of /p is taller only in that letter combination, though I recommend the former option. Is the /ty combination an OpenType feature or did you remove a bit of /t's terminal for this poster? It's better than just letting the swash of /y go right over /t but it's still disruptive. I think I would remove the part of /t which is inside /y's tail and perhaps also the part above the tail.
Points of criticism aside, in general I'm very impressed. The /ta combination looks very cool.