hello, I am an illustrator from Indonesia,
I just created an account on this freelancer site, previously I worked part time in my country, so my friend recommended joining this site, I have long been in the field of illustration, and I've read all the descriptions you provide,
This is the answer to your question
1) the illustrations that I master are cartoon, manga, marvel, etc.
2) For my portfolio I can't send the link yet, but for the style of my work like in my account profile photo, if you want to work together then I will will send my portfolio back via email
3) yes I am willing to work 6-7 days a week, because currently I still have a lot of free time
4) yes I agree with your rates, but the price is for illustration with unlimited revisions
5) yes I am willing to make a sample of your service promo
6) yes I am willing to make a rough sketch in advance.
I hope you want to work with you, I really will work as much as possible for your company, thank you in advance.