Heeey this is amazing!! A real journey to listen through the whole thing, very nice story telling in the music! I can tell you really used concept y'all wrote out. Some of my favorite moments are the intro transition into the main theme and how it comes back in the final track. The arc build toward the climax of Sailing on Stardust Trails around 6:20 really felt good too.
Any criticism is splitting hairs, but a couple things came to mind (during my 2nd or 3rd listen haha). At times it didn't feel so space-y, but I think that's subjective and probably ultimately works to your benefit. The violin in work on the violin in track 6 got a little tiring for my ears, but it works well in the final track so maybe it just needed a little more support or mixing to get it situated.
Overall really great work and very entertaining to listen too. NICE WORK!! :)