They are okay right now. Definitely get rid of the first selfie. Looks too upclose to the camera. Take a look at my IG for examples I use @siralexz

No to your first pic since its a selfie and your facial expression is a little weird, try to get someone take one of you like that or a tripod. Also if you could get yourself in the camera pic somehow that would be alot better. The other ones are really good imo and you look like a pretty attractive guy

I like the photo with a guitar, it's a solid one.
Selfie is questionable, I would replace it.
And the dog pic, also could be a better one.
You're a decent looking guy, but this style with weak beard and mustache... Shave them all, or change it a bit

Do some neck exercises