Thanks for the feedback. I didn't have enough time to add music and sound effects but if I did I think I would have kept it quite minimal.
Regarding the outdoors section, if I were to turn this into a full game then each level would be a different planet, so the outdoors would be different on each of them.
Great to hear you liked Pixel Peak too :) I started making a full version of that but got a bit carried away and it became bigger than I could handle. I hope to revisit it at some stage cos I enjoyed working on it. But I also want to make a bigger version of this now as well :)