This was your first translation? Very impressive. Please continue.
Since this is high quality, I'll nitpick a bit for feedback.
P4 "outshone" is simple past, perfect tense should be 'outshined'.
A few weird words cuts like P40 "thoroug-hly".
P40 "within the first two weeks we'll then build up...", the 'then' shouldn't be there.
P51 "other than "looking pretty"", quotation marks not needed.
Thought I noticed a missing preposition somewhere, but I can't find it now. Might have been my imagination.
In general, there's quite a bit of random switching between British and American English.
If these are the worst offences, obviously you did a fantastic job for a first release. Looking forward to more.