When to finish the cut

[shygrups]

I started my cut at around 40%bf being a miserable fat fuck and now I have made it down to around 20%bf. Ive been cutting since december and dont know if I should stop cutting and starting to focus gaining muscle when I reach 15%bf, or if if should even go down even lower to like 10%bf?

Also these are before and after pictures for how I look like now

 

[shygrups]

I only had one before picture, I deleted the others cuz I was so disgusted by how I looked

 

[shygrups]

b

 

[shygrups]

b