I'm sure that nobody will consider it an intrusion of any sort. And when it comes to learning about/improving map skills and techniques, you've come to the friendliest place I've ever seen for that sort of thing. As for your English, just do the best you can, nobody's perfect.
Oh, and one more thing before I get on about my business . . .
Welcome to the Guild! Hope you enjoy your stay, and may it be a lengthy one at that.