after 6 or so weeks of doing the same thing, i can publish some resluts

i've put on an inch on my chest (i now have cleavage )
i've put on about half an inch on my arms
i've lost a bit of my tum
everything else is sort of the same
so it's all good so far

but now for the other questions

the tightness is due to the outside of my chest growing, where it meets my shoulders, and the hair on my arm pits becoming itchy

my chest is also growing in odd places, ie, it's got bigger proportionally on the upper outside and lower middle with the lower outsides and upper insides now looking a bit out of proportion

how do i get this bit of the muscle to grow? remembering i've only got one set of dumbells and possibly 30 minutes or so free time on any given evening to do this?

should i shave my arm pits?

overall i honestly do feel better about myself