i see your dilemma, i think that the first order of business should be a fast prime , look for an inexpensive nikon converter for 35 dollars or so ,on e bay . i understand the series e ,despite being a less costly line ,was optically excellent.


so the 50 1.8 will become a very nice 100 mm 1.8 portrait lens a perfect shor tele as it were .


with your kit thats enuf to start doing lots of good stuff


after that i would probably go with the pk mount as that long kinda fast zoom the mitsuki[mitsumi] 75-260
 
sounds cool ,and will become an exotically fast 150 -520 4.5 zoom . wow !to get sharp handheld will be a challange keep the shutter speed at 1\1000 or higher and set the I.Stab. to mode 1@ 500mm


and the makinon will give the fov 270 2.8 also exotic numbers considering


take a look at some of the work of the great photographer of the past   and seeing what appeals to you take
a look at the way lights and darks exist in the" rectangle" of the photo , or how color is used , how shape is used  or movement circulates , great pics are great for a reason ,  what you see first, what you see second dwell on one image for a few minutesor even longer ,


 and play with the pen every chance you get , set in in a mode pop a manual lens on and shoot away see what some exposure comp does compare different isos and " digital films"  you have made a wonderful choice and i predict your gonna love the world of micro 4\3 as so many here do

yes olof  i stand corrected , thanks