I'll try!
Anything in brackets are a negative number Companies House and HMRC don't use - but ().
Basically, she has assets but her creditors (owing to) are a lot more than what she owns.
It's very, very low. So low it's a minus! However, as the company is a separate entity to her - this figure of -£ does not reflect her personal income and if a company chose to chase debt, the company can sue the ltd company and not the director as an individual and she will not be personally liable to pay. Hope that reads right!
HOWEVER as a company director she'll also complete a SA tax return which are private so despite the company accounts showing a loss, she could be putting more through SA and turning a profit (tax rebate = made a loss. tax owing = turned a profit)
I haven't worked in practice for a number of years and still studying so anything deeper may need someone more qualified to explain