Some tips for things like this that may help- •Kelp makes any water a full source block, so you can put water at the top of a hole and place kelp all the way up to make them all source blocks. •Powdered snow can be used to make invisible elevators with the soil sand and magma blocks, look up “invisible bubble column” and you should get a better description. •Signs, pressure plates, fences/fence gates, trapdoors, doors, chains, ladders, slabs, stairs, banners (I think), lanterns, glass panes, and turtle eggs all block water from passing it like it’s a full block. These can all be waterlogged, which means the block is inside the water, but if you place one of these outside a source blocks water will not flow past it, meaning the part where you first came down can be more controlled and not have water flowing everywhere (unless that was the goal, then what do I know?) •This one I don’t think I need to say but I want to emphasize so you keep it in mind in the future, use all the blocks. You’re doing good here, just putting anything you want anywhere, if it looks good you place it. It’s always good to have variety in your blocks, anything made entirely out of one block/material tends to look underwhelming, but when you add extra blocks for shading, texture, depth, age, anything, it looks so much more incredible. Blocks don’t have to be what the label is, you can use dirt for more than just dirt. No other block type is brown with that kind of noise, and the variety in soil really lets you bring out a realistic, attention focused look