fuck I should have charged her way more.

>>291838
>Is it stupid and amateur or even just rude to put a light cross watermark on the contact sheets
yes it tends to piss off clients use a contract instead (adobe sign /echosign)
>Am I entitled to ask for more money, how should I go about that and how much?
for the amount it usually depends of the place where you are and the hours/quality of the designs for renegotiating the price i'm not sure of asking for more money i wouldn't do that since it might piss off the client so maybe you will want to come clean and speak to her as you are doing it now not sure

https://blogs.adobe.com/creativecloud/20-unacceptable-behaviors-for-freelance-web-designers/

>watermark
surely you've set up a contract which counters her stealing your work
>am i entitled to ask for more money
you can do what you like mate but it will probably piss her off. better to do it, learn your lesson, and charge more in the future.

>>291839
>>291840

Thanks for the advice. The problem is it's a really casual thing, a friend of a friend who liked some of the stuff I've done. The initial sum I said was just me throwing out a number, so I said £20, but I've been told by people and friends to have at least gone for £100. But you guys are right, it's my mistake.

I'll just stick by the original plan, thanks again.

>>291841
Brother, £20 says a lot about you. If you work for any more than 3 hours that's lower than minimum wage.

https://www.youtube.com/user/TheSkoolRocks

Check these guys out, they'll teach you the business of design. You could have EASILY charged +£200, and LIKELY charged +£1000

Always ask what their budget is OP!