I like to take pictures to trees/flowers/plants, they are naturally beautiful and those pictures are great as wallpapers.
https://www.flickr.com/photos/markuz/37119183502/in/datetaken/
https://www.flickr.com/photos/markuz/36894079150/in/datetaken/
https://www.flickr.com/photos/markuz/36894074560/in/datetaken/
https://www.flickr.com/photos/markuz/36894059680/in/datetaken/
https://www.flickr.com/photos/markuz/37100208656/in/datetaken/
https://www.flickr.com/photos/markuz/36894049830/in/datetaken/
https://www.flickr.com/photos/markuz/36477194833/in/datetaken/
https://www.flickr.com/photos/markuz/37118676032/in/datetaken/
https://www.flickr.com/photos/markuz/36477381513/in/datetaken/
https://www.flickr.com/photos/markuz/37149108161/in/datetaken/
https://www.flickr.com/photos/markuz/36477723443/in/datetaken/