From your order it looks like your going to make some sort of strawberry banana desert mix. It's good that you bought several different types of the same flavor because not all flavors taste the same. I also see you didn't buy PG so I assume your going with a high VG mix.
As was mentioned you may get board with the same type flavor mix but I think your on the right track for your first attempt.
Here is some research to help you with your technique.
My blogs will give insight into all aspects of DIY, from steeping to what supplies to have on hand to a basic walk through mixing your first E-juice.
E-Cigarette Forum - dannyv45 - Blogs
Then read hoosier's blogs. These blogs concentrate on fine tuning your mix and give insight on additives.
E-Cigarette Forum - Hoosier - Blogs
Then read Boletus's blog's. These blogs concentrate on formulation of nicotine bases regarding proper calculations methods for figuring Nicotine concentration as well as safety.
E-Cigarette Forum - Boletus - Blogs
Then read Ginger's book "E-Cigarettes 102: DIY E-Liquid". It is a book which I've contributed to that delivers an in depth easy to follow guide in the art of DYI.
E-Cigarettes 102: DIY E-Liquid
I recommend viewing VPLive Vape Team Episode #82: DIY Safety and bookmark it for future reference. It explains safety in all aspects of DYI.
VPLive Vape Team Episode #82: DIY Safety
then read the stickies at the top of the page.
this will explain a lot of the how's and why's.