Firstly seems incorrect. 'First' , 'second or next'(or further more)[to extend a point] , 'Finally or last' {last of all, last of which, last of these} (or lastly)[also feels incorrect] -for last point or summation-. When you begin by counting list-points with 'first' then you should continue to fallow a number scheme .

Also it is just my habit to break 'as well as' with one or two commas. xxxx ,as well as, xxx. I not sure on the grammar rule with the second comma as it doesn't replace a 'and' and the first comma is redundant. But readers who pause at commas may read it better.

But I fallowed your writing fine and understood it even with no subject knowledge. lostclimate is correct in that more compact and specific sentence are better the long structured sentences, even if they do obey grammar rules. But my grammar is subpar for the average native speaker.