I'm glad that you liked those two songs (as well as the other which you reviewed some time ago.)
About
Dark Forest; there're a good number of other songs on that album which I've found likable, although that song may be my favourite of theirs. The one thing I dislike about the album is that for the most part the singing is somewhat poor. On their later albums they had gotten other vocalists for those duties, but I found the songs melodically/structurally lacking on their successive albums. So, basically, I think their first album is the only worthwhile one because of the instrumentation there and would be worth checking out wholly as you seem to be planning to do.
On
Beyond Creation, I'm guessing that the full album would bore you because some of it gets pretty repetitive and there's more 'jazzy-ness' (although one of my next recs has jazz influence, I think rec'ing it is worthwhile as it showcases a different jazzy aspect, whereas much of BC's jazzy stuff is fairly similar technical stuff,.) There are some other songs probably worth checking out from the album as they stand apart from the sameness which the majority of the album has. I can only recall the name of one of the others right now, but it's "Fundamental Process" but I don't want you to take this as a rec for this thread right now, rather for when you feel like checking the album out to make sure that you listen to that song before you throw the album away out of boredom. :P
Here're three new recs.
"Lost in the Depths of Me" by
Lost Horizon, from the album
A Flame to the Ground Beneath (2003,) Genre: "Progressive Power Metal" --
https://www.youtube.com/watch?v=v7joi4dKmkM
"Lurker in the Moonlight" by
Klabautamann, from the album
Merkur (2009,) Genre: "Post-Black Metal" --
https://www.youtube.com/watch?v=aOGEvCYIgRA
"Outside the Great Circle" by
Costin Chioreanu, from the soundtrack to a film of the same name which was released in 2013, but also from the album
The Quest for a Morning Star (2015,) Genre: "Experimental Dark Ambient" --
Outside The Great Circle | costinchioreanu