Implementation of a ui/ux design

Hello I was wondering if someone can help me with my problem which is this .
I have been ios developing for about a year now (junior) in my spare time however i aspire to be senior level as soon as . i was wondering how would i go about implementing a ui design given to me by a design team . for example they would give me a home page design how they would like it to look it and it would look very stylish as have custom fonts . would i go about creating this does raywenderlich have any course to do with implementing complex designs ? like for example a bottom tab bar that is wavy and multicoloured and a view controller that is got curvy lines in the border . would this be a case of adding different views that have been reshaped ? or is there another way to achieve this can someone please help me

@bgrammer Please check out our App Design Apprentice book when you get a chance:

I hope it helps!