@wanyo nice edit

@wallie998 Your not going to find rocks that stick up from the ground then have a waterfall coming off them.
what I suggest is stop drawing the detail for now and lets block in the contours of the land first and rough colour of where the water cliffs and trees are.
I feel like attempting an edit because Ive never done this but no time right now.
What im thinking would make sense is that this petal broke off from the main land. Theres a volcano (can be dormant an overgrown if u want) in the centre with ridges running out, then they were snapped off by some event.
Now u have cliffs on the mainland side, and on the petal side tthat would be the high area with a forest and some small peak popping out the top.
water flows from there through trees to a cliff where the land suddenly drops off and there is ur waterfall with pool and caves there. Surrounding this is more trees and coming from there is only one river following the contour of the land and out to the sea rather than making several random blue lines.
Is the island populated? If so, by whom? What is the theme of the world?