OH MY GOD THIS TRACK IS AWESOME
Metal is awesome by itself, but FOLK metal!?!? It's just too cool.
This next comment is totally just my personal pet peeve, but why use the Soft sound set for such a heavy song? It's just begging for some whistles. x3 I personally don't think it fits at all. But then, plenty of ranked beatmaps are like that, so keep it however you want it. I just don't like ti much. :p Now for some REAL modding.
EASY:Since this is an Easy diff. (Well, it's actually more of a normal TBH, maybe you should rename it?), I think you should lower the difficulty a bit. My suggestions:
HP Drain: 4
Circle Size: 3
Approach Rate: 3
Overall Difficulty: 2 (I stress this one, those spinners were a bit too hard for this level)
00:21:966 (5) - Having any note begin on anything but a white or red tick in an Easy diff. is generally bad idea. It's hard to read in general, even more so for a newer player. I know this makes the map seem boring to an experienced player, but not being intuitive in your maps just for the easier difficulties is both annoying to new players who can't clear the harder maps and also makes you look lazy.
I know this is your first map, as you said, and most mappers find easier difficulties to be tough to map for. Just keep it in mind as I continue the mod and for any future maps!
00:25:785 (1) - You were pushing it with the two objects before this one, but I note this one since it's another Blue Ticker.
00:57:557 (5) - New combo?
01:00:285 (10) - Same as above? You had a bunch of 4 combos but then you suddenly have a 12 combo. Might as well keep it all the same. Longer combos actually do make the map harder by the way, since the ends of combos give a bigger Life boost than normal hits.
02:04:648 (7,8,9,10) - Another blue tick here and otherwise hard for a new player to read. Since you had a pretty steady beat going for a long time before this point, it makes it even more counter intuitive. Easy diffs. really are more about focusing on keeping the beat and keeping it simple. It's actually pretty simple making an Easy difficulty.
02:50:467 (1) - Hey hey, this is an Easy difficulty, no jumps!
Seriously, new players will NOT be able to do that.
02:54:830 (1) - Above. Any other jumps will have to be changed, too. They're no bueno for easy difficulties, sorry.
HARD:Overall difficulty +1? Spinners seem too easy now.
You had WAY too many short sliders. It's really easy to spam repeat sliders. It's really tough to read and pretty strenuous on the players clicking fingers...
Try making more lines like this one: 02:37:648 (2,3,4,1,2,1,2,3,4,1,2). It had a pretty good mix of hit circles and sliders, and not too much unnecessary repeating.
I didn't see anything particularly unrankable about it otherwise, but all the mini repeat sliders just make it seem a bit lazy and not very original.
INSANE:00:02:739 (1) - Note is partially off-screen. That's unrankable.
00:39:557 (1) - Haha, there were a couple of these, but sliders like this on Insane difficulties are fail-bait. Not sure if that was your goal, but yeah, it can be a bit jarring to suddenly have a big slider like this since they're so easy to do for any player skilled enough to pass this map to begin with (those streams, such fun). I don't know how good you are, but what I mean to say is that you don't get a lot of HP from slider ticks and Insane diffs. tend to have higher HP Drain Rates, so you could end up failing here even if you were doing it right. It's not a problem in its own right, I just wanted to let you know in case you weren't aware of this...
01:10:512 (1) - Move this note to 01:10:376 and add note at 1:10:648? This note is hard to read.
01:15:830 (2) - Distance spacing is hard to read. Once again, not sure how good you are at the game (I'm trying so hard not to treat you like a noob here, I swear xD), but experienced players tend to judge more on the distance spacing than the approach circles. Even if you were trying to make this one part a little bit harder, it's not really a logical place to put something like that in the song's flow, you know what I mean?
01:21:285 (8) - Once again, distance spacing. It's really tough to read this hit as anything other than part of the stream it appears to be connected to. If you want, you could just do a new combo on it to show the player that the timing on it is different.
01:23:876 (3) - The timing is tough to match with the lyrics singing to a different beat here.
01:25:648 (2) - More spacing
01:46:239 (1,2) - Notes are partially off-screen
There were a lot of spacing and timing issues in this one. Better that you make the notes REALLY far away (A jump, as they're known) then way too close to the last note when the timing isn't the same. The only time that's really OK is when you're stacking notes. Pretty much anything is fair game in stacks, it seems... Haha!
Love the background image, love the track! It needs some work, particularly on the spacing and weird timing, but I think it could be great with some cleaning up work! Also, might I suggest making the combo colors a little brighter? Having such a dark, forest-y feel to it just doesn't sit well with me for some reason. It's never bad to have some good contrast between the BG image and the combo colors. Most more experienced mappers just leave them as the default colors, actually.
Good luck!!