Hope things go with everyone of you fantastical!
is a very badly-worded sentence; what you'd really want to say is:
I hope all of you are doing great!
but I wouldn't even put that in an introduction. I think it would make you sound overly excited, which would probably give your introduction an aura of phoniness.
I think it's best to keep such introductions simple. Plus, make the email more about the company, and less about you. That way, people are less likely to misinterpret your email as you showing off, or fear that you are going to shake things up too much.
Dear Colleagues: My name is Xiaoming, and I'm a new marketing executive with our company. I'm looking forward to working with all of you. I have quite a bit of experience in the industry, but I'm looking forward to learning a lot more. Thanks for your time and for making me feel welcome here.
As for your second draft, it's much better, but still has a lot of problems:
Dear Everyone : My name is Xiaoming, and start my work today as Market executive. I am from China, in mid-age, have been engaging in fashion and custume jewellery industry for over 5 years. I am glad to have this opportunity of working with you, and would like to chat with you over coffee, tea, or at lunch time. Thank you Best regards
- I liked "Colleagues" better than "Everyone". If you want to use "Everyone", say "Hi, everyone." We don't use "Dear" with "everyone."
- Say "I start my work", not "start my work" (or, even better, "I'm starting my work"). I'd also leave out the word "today" – what if people read it tomorrow?
- Don't say mid-age; that's too ambiguous. Say, "in my 40s" or "in my 50s". If you just turned 40, you can say "in my early 40s"; if you're about to turn 40, you can say "in my late 30s".
- Don't say "engaging in", say "working in". We engage in conversation, we work in the industry.
- Don't spell jewelry with two L's if it's an American company. Don't spell costume wrong. By the way, you should spell-check your emails – and your questions on ELL. (That's just courtesy; your colleagues get paid to work with you, we don't.)
- Don't say "I would like to chat with you..." Believe it or not, "I would like" can sound demanding. (Think: "I'd like you to take out the trash now."). Use something like, "I hope to have the chance to chat with you..." instead.
- Are you sure it's Market executive? I'd expect marketing executive. And you don't use an upper-case M unless it's the formal name of the department, e.g.: I'm a new executive in the Marketing Department.