It's never a bad idea. Muscles are good to have for health reasons in general and being able to lift heavy objects is very convenient and empowering. Of course, you look awesome already.
Awh, thanks @jozsef overall o just don't think, given my build, I'll ever be able to get that very slim shape without drastically cutting my food intake and I already fast 17/7. Maybe building slightly more muscle and trying to get slightly more lean is the way to go.