Alright, first of all you'll need to work on your grammar and general English skills. Bad grammar can turn quite a lot of people off the novel. Just from things I've noticed, you'll want to pay attention to capitalisation at the start of sentences, spacing after a full stop, using proper tenses (example: "the army of undead is leading by three people" should be "The army of undead is lead by three people") and general sentence structure and word placement.
For instance, something like "by three people that so weird three people look is far from undead being or someone who controls the army." makes absolutely no sense. I would think it would be something along the lines of "by three people that appeared weird as they did not seem to be undead beings or people who might lead an army.", but it is difficult to tell as the wording makes it difficult to tell what you actually meant.
Then there is the talking. It is difficult or nigh impossible to tell who is saying what. There are various ways to avoid this problem. Some novels use the character names in brackets before speech to indicate who is talking, but most use simple cues like "he said 'blah'", "she said 'blah'" or "George said 'blah'". This helps people keep track of who said what and be significantly less confused.
I would consider looking at some well-written English novels (if you're not sure which ones on here are well-written, go to a book store in real life. Most books get looked over by an editor before publishing, so the majority of them should be good) and carefully looking at how they write the grammar and sentence structure and so on, so you have a easy point of comparison.
After you've done that, you need to turn your perspective around. 'Talent', 'specialty', sure, they can be important, but in writing the more important things are these:
Plan your novel. What characters will appear, why, what they can do and what will they do; where will they go; outline the story for the novel, major events, and so on and so forth. Once you have an outline of the story, each chapter will become easier to write.
Keep writing. It's a basic fact on these sorts of sites that the more chapters you post, the more people see them, and the more people that see them, the more readers you are likely to have. Outside of readers, writing, funnily enough, increases your skill at writing.
Research. In writing a fiction, you're going to be writing about a lot of things you don't know about. There's no escaping it, because let's be honest, not many of us are experts on the behavioural tendencies of wild animals, metallurgy or mythological beings. So, rather than just making something up or having it work however you think is convenient and annoying the heck out of any reader who knows how it actually is, you look it up. Read up a bit on the topic before you keep writing.
Don't stress if you can't find the right word for something. A thesaurus can help in a lot of these cases, but if not, don't stress. Make a note of it somewhere so you can remember to try again another time. If you still can't figure it out, just let it be.
Don't stress about the early chapters. If you're serious about the novel, you'll probably end up editing or re-writing them again later. Trust me, I've done it about two or three times for each of my novels.
And finally, write about what you know. Now, I'm not saying that if, for example, you're a master fisherman that you should be writing a story about a fisherman, but it is good to incorporate your knowledge into the story. It can make it more interesting, and let's the reader actually learn something through your novel.