The rectangle shape w/ overhanging waterfall for koi pond design - may be difficult to get it to 4ft deep for near 1/2 of the pond, but could build entire structure 4ft deep & use the large river rocks to raise & lower the 'deepness' & create hiding spaces for the fish.
Kitchen without top cabinets
DWELL KREADEN RESIDENCE , SUNNYVALE, CA
Kitchen - C Penthouse in Antwerp Belgium by Vincent Van Duysen
Stadstuin met volledige houten flonder
Japanese Garden Landscaping Design, Pictures, Remodel, Decor and Ideas - page 26
tuinontwerp stadstuin Amsterdam
Detail Collective | Outside Spaces | No-Grass Gardens | Image/Design: Standard LA Design
Attractive front entrance with little to no upkeep.