Hello Maximillian and welcome to the guild. As for software I think try out all of the free ones first and get a general sense of what works for you....
Not sure if that means your requesting a commission or replying to service them but in the latter case I would recommend posting up previous maps and...
Apologies for that and thanks for being patient and letting us know. It was still in moderation so I have approved it to show now. Once your past the...