Well, you have alot bugs, with the mountain and the borders. Some parts look a bit square, the waterfall is coming out of nothing and the crystals look a bit misplaced (crystals don't grow on the top of mountains like that). You should replace brown gravel/debris for grey, there is a stone and a staligmite floating on the water, the grey borders don't fit on red mountains and also the cave wall part doesn't fit there imo. But I like how you made the water around the mountain, so except from all those things doesn't look bad.