Nice concept, and the little troll at the end was funny. My only complaint is that it felt a bit arbitrary to be able to traverse some brown platforms and not others. I know you just switched their direction, but if you put yourself in an average player's shoes, it's not obvious at all. Also, you may think your level design was bad, but if you don't add a 3rd color or another mechanic, there's not much else to do, so it's fine like this. Finally, you shouldn't apologise. You can say that you're a beginner, you can explain you didn't have time to fix this or that, but don't apologise. We all had to begin somewhere, if you're not proud of your game, at least realise that this is YOUR game, nobody is entitled to anything from it, you have the right to make games with flaws, or bad games, because it's inevitable anyway, it happens to all of us.