Amy Winehouse in Spring 2008 (left) and Monday (right)
Most Wanted/Flynet; WENN
07/14/2009 at 08:00 AM EDT
is back! She arrived in the U.K. from St. Lucia Monday, looking initially tearful to be home, but healthier than she has for ages.
Winehouse, 25, who has been in the Caribbean island for much of the year
is planning on catching up with friends and working on her new music. But most noticeable is her improved complexion and fuller figure.
"She is good. She has been looking after herself," says a friend. "She did a lot of exercise and she has been eating better. Look at her – she is not what she was."
While there, life was not all beach romps and relaxation. She aborted a performance at the St. Lucia jazz festival
in May and then canceled
a slot at the celebration of her record company.
But, tales of her going on alcoholic benders are exaggerated, friends say. "She is Amy Winehouse and has a drink. But she has improved considerably." The source adds, "She has had to cope with some huge problems, including her marriage of course," referring to her estranged husband Blake Fielder-Civil starting divorce proceedings
earlier this year.
Next up for Winehouse is developing the music that she worked on in St. Lucia with Miami-based producer Salaam Remi. PEOPLE has learned that she is set to meet up with her band to showcase the tracks to them.
There is also some legal paperwork to be done on her burgeoning label, Lioness, through which she will release work by Zalon, one of her backing singers, and Dionne Bromfield, her goddaughter.
And later this month, she is back in court for her assault case
, which she pleaded not guilty to during a hearing in March.