Css help

could someone turn https://myspace.windows93.net/blog.php?id=48506&b=2 cute theme into a red nether theme for me? :D I tried but I ended up messing up!!
backround set to this
https://64.media.tumblr.com/c0a17baab4f49d4b91ce347b03d24e38/379e4c4ebc3e337d-22/s500x750/3eb51d6c143fc9a153c59daee89d7ba1a19efe81.png
I also have a few other nether images that you can use for the extra images on the page!!
https://64.media.tumblr.com/b07b1c8d0b934fe0d6692b02323edd34/5db6b1545a75a31a-ef/s400x600/1cf174fc0783397922296abaabcbfb5854fc7e5e.gifv
https://pbs.twimg.com/media/EGHt6lpWsAAlsOt.jpg

thanks in advance !!!!