It's not too difficult. Start by sketching the basic shape of the train, then add details like wheels and windows. Use simple lines and colors for a cartoonish look.
It's completely inappropriate. Comics should offer entertainment and inspiration, not such disturbing and potentially harmful subjects. This kind of content can lead to negative psychological effects and is not suitable for public consumption.
Big ass cartoon milfs usually have curvaceous figures and a mature charm. Their clothing and hairstyles might also contribute to their distinctive look. Sometimes, their behavior is designed to be flirty or alluring to add to the appeal.
It depends on your personal preferences. If you love superhero stories, Thor comic might be more exciting. But if you're into fantasy with giants, that could be the one for you.
To be honest, I don't see an immediate link. Big bunnies and cartoons could potentially be in the same fictional setting, but muffins seem out of place. Maybe it's part of a very unique and unconventional concept.
Hentai femboy comics often feature explicit and adult-oriented content, with emphasis on feminine or androgynous male characters in various sexual situations.