The first one is a "Morph" effect between four different ASCII logos, which are also cool and done by Skylined himself. I like the "Shark-like" logo the best, because it looks even more 3D with the morph effect than it did already without it, but his ASCII called "Julia at Awakenings", which was a contribution to the Non-Existent ASCII contest at deviantART in November/December last year is also pretty cool. He did not win unfortunately, although he was my personal favorite and got my #1 vote (I was one of the judges of the contest).
The second part is actually more impressive and something for the coders at heart, what I am unfortunately not. It shows a real-time Mandelbrot fractal look-alike zoom and rotation and was programmed entirely (no ASCII logo).