Thank you for taking the time to try out my game and leaving some helpful feedback as well!
I'm glad that you enjoyed the experience so far and I'm very happy to say that your suggestions on where to place my focus going forward lines up with what I thinking too. I plan to including more substantial secrets in the future, seeing how finding secrets is one of the recurring element from a lot of the games that have really stuck with me over the years.
I'm still constantly tweaking the movement and making adjustments to (hopefully) improve the gamefeel, I can't tell how many major changes I'll be implementing but I'll see if I can't still find some ways to tighten it up.
In terms of inspiration you are of course spot on.