Conditioner + a flat iron works on pretty much any pony! There are a few types of hair you have to be careful with though. G1's perfume puff hair and the colour-changing hair on the Sunshine ponies and TAF Sundance will melt, so don't use heat on those.

Not going to say anything specific because I'm a bit scared to, but I was at Pony Fair today and heard two vendors talking and one of them said something really horrible about trans people. I was having such a good day, but that really put a damper on my mood. Pony fans are usually such tolerant people so it was really shocking to hear

She's super pretty, would love to have her someday! She's in my favourite pegasus pose too, which is nice.

I agree with SpacePinto that she was good in Cloud Castle. I think she was also in the Princess Pony episode, which was one of my favourites as a kid.

Aw, this is adorable, they're so happy! ^^

I'm biased towards Illustrator since it's what I use at work and for personal stuff, but I've heard good things about Inkscape. Never heard of CorelDRAW before, I'd have to do some research before recommending that.
Honestly if it's just circles and grids you could probably get away with using pretty much any vector tool, but if you ever want to do more complicated art then I would recommend finding a program you particularly like.

This website has a game of sorts to help practice manipulating anchor points and curves. It also has practice for combining and subtracting with simple shapes, which is also super useful in vector work, especially for really simple stuff. Both games are at least worth trying once, if just for the practice! https://bezier.method.ac/

If you want help with anything more specific feel free to shoot me a message! I might not be a super big help but I do have a decent amount of experience with vectors so I'll try my best ^^

These look great! I would love to get one, if you don't mind

Pony name: Agos
Ref: Here. Accessories and stuff are not necessary
Towel color/pattern: I was going to say a circuit pattern but I know firsthand how annoying those can be to draw, so. Whatever you feel like drawing!
Beverage: Something with a lime in it? Or radioactive neon green sludge, if that's an option!

It happened to me too. I can't tell you what's causing it but I do know that I got it to change back by changing the page to desktop view, so if that's an option for you I'd recommend that!

Have Sundance, who is super cute, but not Megan. I don't really care for her face sculpt I'm afraid.