How can I denote Time complexity and Space complexity in terms of Big O notation when I have total memory and total parameters.(See Figure)

I am asked to do a time and space complexity analysis of the model whose detail is in the figure. I have calculated the total memory and total number of parameters. So how can I denote (or write) the time and space complexity now? Something like Time complexity = O(_) and Space complexity = O(_). Also how can I calculate FLOPs from this data?