1.Some questions regarding your Brics: do the downloads contain some kind of tutorial (video preferred) or is the only information that is available on your website only.
I am not sure what the difference is between Swiper and Infinite Slider, although, online, one seems to deal with smaller images and the other larger. There must be some other crucial difference.
Using Swiper, can you have full screen images on Automatic Play?
A quick search on his profile and this forum will show you the links to what you are looking for with all the answers. Video for the 1st and site for the second.
They are 2 totally different brics.
One is a swiper and one is an infinite slider! (hence the name ! lol)
Image sizes are dependant on the size you want the images to be. Lucas will have used these sizes for demo.