Wow, your essay is very good.
First, let me say that I love your opening. It's short, yet so refreshing.
I want to transfer because engineering is my passion
Personally, I feel that this doesn't seem to flow very well. I understand what you mean, and why you want to transfer, but for the reader, it's like going smooth and then suddenly hitting a snag.
I want to design new trains, planes, reactors, computers, anything; to forge the technology of tomorrow, today; to frame new ideas that we won't understand for decades.
I feel like it would flow better if you put "to frame new ideas" before "technology of tomorrow" because you wouldn't need the semicolon, and the word "today" has a lot of impact at the end.
It's great that your third paragraph explains your lifetime goals, but how is that relevant to your objective at this particular school. In fact throughout your essay, you've made it clear what you want, what you need, but you haven't talk about what you are planning to do specifically once you get into that school. What type of degree are you planning to get? How far are you going to go with your education? Are you graduating with Honors etc...
Though only one month has passed since the semester began, I am much happier and more interested in my new classes and would love to continue them.
I understand what you mean, but admission could very well ask, "Why not just continue these classes at you current school, if you would love to continue them?"
You have a lot of negative stuffs (you're bored, you're unhappy etc.) but I feel that instead of focusing on all the reason you don't want to stay at your current school, you should focus more on why you want to go to this new school? Does it have a better program? Does it specialize in engineering?
Overall, your essay has a lot of impact which is memorable, and your ending was great. Just try to focus on the target school more and be more positive.
Hopes it helps :)