Hey bro,
I don't really have much feedback, since it seems you really know what you are doing. I did find a bug though. That specific area on the map for some reason the camera didn't follow the character (see pics related), I tried going in and out of that room, but at most the camera got stuck in between both areas - that also made it so the map didn't check it as "seen".
Another minor issue I found was that sometimes the Double jump wasn't consistent - it didn't always happen though, but example once I did the jump and touched the ground and jumped again sometimes it didn't activate the double jump even though the icon that showed it was available was "on".
Other than that, there's nothing I can say the game is looking great. Keep up the good work!