Hello Jade,
I'm Little Man and I am a male submissive in the UK in an online relationship with my Dominant in the US.
May I re-order you questions please? Firstly I think that before jumping into a D/s relationship both of you need to talk at length about each other, who you are, what you do, where you live. There has to be complete trust and you won't have that if there is something niggling away at the back of your mind all the time saying "I'm not sure". I corresponded with the lady that is now my Dominant for months before eventually asking Her to accept my request for submission. Only when I felt that she genuinely cared for and trusted me did I feel that it was safe to continue. This holds good for doing things like sending photographs. Are you sending the photos at your instigation or His? Your relationship is not about him doing you a favour. It's all about learning to be a submissive and letting yourself grow in that. If you have that niggling sensation then I would suggest that you don't know each other well enough yet. As I said, it can take months of talking before you even reach the stage where you will freely give yourself.
Secondly, online training. Frankly it can be frustrating and you will be carrying out most of your tasks alone. It is easy to cheat and all that I can say is that if you are genuine, then the temptation shouldn't be there. Some will tell you that online is just fantasy play. It is just as intense but is much more the mindfuck that you may have heard about than. Like anything else in life, if you want it to work and you give 100%, then you should achieve success. When I am out and about, if I do something that I feel that my Dominant should know about, I tell her and wait for her reply. You have to place you Master in the forefront of your mind. We must not let them down.
Finally, if he is doing his job properly you should feel cared for and respected. Submission is not all about sitting at your computer waiting for the orders to come. You should have a perfectly normal relationship, chat and laugh. Cry too at times. He is the lead and you must obey as he knows why he is testing you and you don't need to know what that is unless he tells you. However, you need a rapport too. Read up on the subject, keep your journal if you have one, and have FUN.
Hope that helps a little. Take care.
little man