How can I improve it?
What did I miss and how can I fix it?
Do you understand Japanese at all?
If you know some basics of the language and read what you got from online-translation, you should realize it does not make sense.
What you presented as "translation" is not a text in Japanese with many mistakes (with which it is possible to fix or improve), but just random Japanese words conjugated/placed randomly. Most parts are not even sentences and as Toritobe pointed out, do not make any sense at all.
If you're learning Japanese and want what you wrote yourself corrected/improved, you can ask at Learning Japanese section.
If you just try to get something out of babelfish or similar online-translator, it is not worth for correction in the first place...
And I feel something is very wrong - what do you think if I make some Japanese text into Englsh with machine translation (which actually gives out nothing but garbage) and let other people correct it, get paid for that "work" that was done by the machine and others not myself, and then mention it in my portfolio?
Sorry if my comments sound very harsh, but this is the impression I got from your posts.