Hi! I played this game because it is set in an old, ruined temple full of bones from previous explorers... The blonde bombshell with the cute dog had no bearing in it at all. No siree.
Okay, joking aside... this is a good game, yes. Simple, intriguing, and just a bit suspenseful. This is a demo, right? So, are you working on a bigger version?
Question: Zima is the blonde's name, or the temple's?
If I may offer some critique/suggestions... In my opinion, the animation could use some more work; it feels a bit wonky... a bit jittery.
Pressing up could have more use than just... showing the blonde's very toned rear. She could check certain parts of the scenery, or even find some secrets that way.
The sword could also interact with some parts of the scenery, like the wooden beams or the vines, such as the ones from the very first section.
Also, there could be more parts where the dog's assistance would be required... That's up to you, really.
I like the game's aesthetic. I do think the blonde could be more like she looks in the title screen; however I know that is hard to do using pixel art, while maintaining the character size.
Also, the way you divided the game sections is good. Some areas with dangers and/or enemies, the secrets, and the parts where you just pass through... all neatly arranged, so as to give some pacing to the player's progression.
If you are working on a bigger version, I'll be tuned. In any event, congrats on making this game!