I doubt anyone would notice, If you want Japanese, get Japanese. I think mixing is probably more common than having 100% of your tattoos the same style. I think I'm the exception. I'm about 95% done with a Japanese body suit.
Whatever the artist is feeling. I can’t tell you how many times I’ve gone into my artist expecting we would work on one thing on a big piece and we wind up working on something different. Let the creative process dictate.
First, £300 for half a day doesn’t sound high to to me. Presumably she drew it before you got there, had to set up, tattoo you, tear down, sterilize everything. It all takes time and time is money.
However, that is not acceptable for a couple month old tattoo. I’d cut my losses and find someone good who can fix it.
As far as a refund, good luck.
Hard to tell from the picture. We aren’t doctors, but in general, symptoms of ann infection are if it’s hot, red, oozing, extremely painful, bad smell. If it’s just red, you’re probably OK.
if you’re concerned, it’s better to be safe and see a doctor.
I’ve had both legs tattooed with no issue, but if it was me, I’d try using cold pacs and exercising the lower legs to try to help blood flow. Disclaimer - I’m not a doctor.