The first one is known as Satanasov or Boreworm, but his actual name is Daniel. In the picture on the side you can see a page from his gag manga Bonzai, published in Daga (rainbow) magazine in 2004.
Next is one of my personal favourite manga of his - Bion. It also was published in Daga magazine in 2004 and I think that this is the only black an white manga of his, that I have seen so far. He prefers to draw in full colour.
You can read Bion here - Bion
This is a picture from the manga Dragon Last, published in the second book of the anthology The Mammoth Book of Best New Manga in 2007.
You can read Dragon Last here - Dragon Last
This is a picture from Satanasov's manga Shaman, published in Comics magazine in 2006.
He also works on the Chisuji project, which you can check out here ---> Chisuji
Check out his gallery to see more of his amazing artwork ---> Satanasov's Gallery
Next is an artist, named Ivan Koritarev, but known as Drazen or Drazebot. On the side you can see pages from his manga Steam, published in Comics magazine in 2006.
Don't forget to visit his amazing gallery ---> Drazebot's Gallery
Next artist is a very talented girl, named Anna Tsocheva and know as Rikae. On the side you can see her book Sketchbook of the Soul, in which you can find almost all her manga stories. It contains the manga Between the Sky and the Earth, Exit, Chibi High, A Story about Loneliness and Sketchbook of the Soul. A Story About Loneliness was published in issue 10 of Shogun magazine in 2010. She has made two more stories, which I haven't seen or read, though and they are Pyronan (2002) and Utop!a (2003).
Rikae's amazing artwork can be seen in her gallery---> Rikae's Gallery
Now I will be talking about the winners of the Aniventure Manga Contest from 2010 an 2011.
My personal favourite is Vasilena Harizanova, known as Watapoku. She won 1st place in 2010 with her story Visit to the Black Doctor and 2nd place in 2011 with her story Grey Bird (she actually deserved 1st place again, but... yeah..). Visit to the Black Doctor was also published in issue 16 of Shogun magazine. I really love her artwork. Don't forget to have a look at her gallery ---> Watapoku's Gallery
You can also read Visit to the Black Doctor here - Visit to the Black Doctor
Second place in 2010 was won buy two boys, who worked as a team - Zakero Tubayashi (Dimitar), who wrote the story and Darkstalker (Boyan), who drew the artwork. Their story Junk Boy has a really interesting story and nice artwork. You can visit their galleries by clicking the following links - Zakero's Gallery and Darkstalker's Gallery
Third place in 2010 was won by Alera Milkova. Her manga is called Cliche and the story is really cliche. Her artwork is average, but she really has improved since then and you can clearly see that in her gallery - Alera's Gallery
Ok, here comes the hard part. I honestly don't like 1st and 3rd place from 2011 and I can't even call them manga. First place was taken by Milena Simeonova, known as Oruba, and her manga Lucky. Her drawing looks like the scribble of a 12-year old child and the story is very simple. You can see her manga here - Lucky and her gallery here - Oruba's Gallery and judge for yourself.
Third place was taken by Irena Mitkova, known as Keri and her manga Forelock, Elastic, Tails. Ah, what can I say about this... It's pencil work with almost no shades and bad or no background at all. I think that if she had put just a little more effort into it, the manga would have turned really great, but she hasn't done that and everything just looks like scribbles, done during lessons. Unfortunately, I couldn't find her gallery to show you her artwork.
I don't think that these manga books can be found on the market. You might find some of the issues of Shogun or Comics in the second hand bookshops and you can find the Manga Contest Winners at Aniventure (the biggest anime/manga convention in Bulgaria).
I think I covered everyone in this feature. Feel free to tell me if I have missed someone and feel free to comment and share opinions :)