Is that a basement window to the right? You might want to berm that up and get the mulch and stuff off the siding.
FYI make sure you build some shelves for your aquatic plants they usually like 0 to 6 inches besides lilies. I like sweetflag , dwarf cattails, thailia for small pond marginals. Just beware that a lot of plants are invasive and will take over a pond.
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