Is 10k salary reasonable?

25F with 2 years of experience here in Qatar. I recently got hired in as a Graphic Designer in a Multinational company. Although it's a 3x increase from my previous salary, I'm overthinking if it's enough or I lowballed myself? I accidentally saw my 36 years old Animator colleague's salary and it's 15k so I can't stop thinking if I gave the right amount.

Package:

10k salary

annual flight ticket

medical insurance

(name of the company for my cv)

If ever, when is the right timing to ask for an increase?