[Baby]
00:54:272 (5) - the red follow points make this slider jerky at parts. Try moving the other follow points around until the curve looks more smooth:
http://puu.sh/166f502:27:991 (2,3,4) - stacks are difficult for beginners as it doesn't tend to occur to them that the next note could be where they already clicked. Please unstack.
02:56:255 - insert a note here to eliminate the 1.5 beat space, which can also be confusing for beginners
[Regular]
02:56:255 - still feels like there should be a note here. It feels like you were intentionally trying to change things, but in actuality it's disrupting the flow of your map
[T Standard]
First impression is that I can play the hard side of taiko normal and I failed this my initial playthrough. Some of the issues:
00:40:883 (2,3,4,5,6) - streams of 5, mixed type
00:43:362 (3,4,5) vs 00:47:329 (3,4,5) - giving the same pattern different notes each time (variety is good, but consistency helps players pass in the face of other difficulties)
00:50:056 (6) - gaps in the music that end on red ticks even though there is an obvious beat on the white ticks
00:56:255 (1,2,3,4) - the 3,4 part of this pattern especially is difficult, its not overly difficult picking it up when I'm on top of things, but since your entire map is filled with this kind of thing, by the time I get here I'd have to take like 3 seconds to recalibrate and get my shit together before I could handle this pattern
01:51:544 (5,1) - having a finish of the same color at the end of the stream is a bit wonky '~'
02:31:957 (2,3,4,5,6) - just saying, this is a good example of a stream of 5 that isn't overly difficult: it follows an easy visual pattern
02:41:875 (8,9,10,11) - sets of 2 are also somewhat difficult but moreso if you mix types like this
Note: you don't have to change ALL of these. Having a few areas that are hard is a good thing...having the entire map being a hard area is not
[Brave]
01:35:429 (9) - this note is in a kind of odd location with respect to the flow of the map. You might want to move these notes out a bit like this:
http://puu.sh/166UQ[T Challenging]
00:41:627 (6,8) - finishes on the offbeats? I have no idea what part of the music this is supposed to go to
00:45:594 (6,8) - ^
you can just assume that for all remaining iterations of this pattern
[Almighty]
Initial impression: oh god there are whistles EVERYWHERE
No seriously, it sounds bad. Either reduce the number of soft whistles or reduce the total hitvolume so they aren't so obnoxious
Also somewhat overmapped; up to you if you want to do anything about the triplets taking over your map though I guess.