i just tested out your map and i have some feedback for you:
the map theme is just too simple. in my opinion, i think that you should elaborate more on your theme, as simply building two islands is just much too simple.
i really dont think this map fits a medium or hard. im not the best at...
i tried it out and it was pretty great ! the only thing is i would suggest adding a bit more stuff to make it seem more like an "ancient" palace. but other than that, you did a pretty good job.
good luck :D
OH YEAHHH tysm for telling me. i originally meant to make it an easy map but then decided to change it last second so i forgot to change it
i cant go on mc at this moment tho so lemme hope i can make it in time