#1 - The shades of B&W you have chosen (preset by photoshop?) are okay - not too much contrast either which is nice to see, However I don't know where the focal point is in this picture, do you? - none of it is really in focus but the general shape is there. Shows improvement but i don't really 'get' this picture.
#2 - Quite like the potential in this one. I'm a sucker for Sepia. You needed to get the whole of the leaf in shot however,.. the subject is cut short and it's a shame... nice shapes - nice colours. The focus (auto?) is a little odd however - probably due to low levels of light. Needs to be sharper in my opinion. Another good effort - I like this picture - with a bit of work you could have a nice one there
#3 Tricky subject - Lots of shapes going on but they are lost amidst over the exposure. My eyes are drawn to the light rather than the strange tree formation - partly because it's not central, and partially because the white is so overpowering - you have thick black shadows and bright white light - did you mess with the contrast on this? A little more planning on this picture, perhaps changing the angle slightly and taking at a different time of day -
#4 Does nothing for me, the pole is not central in the picture, and the upper right section of sky appears to be a completely different shade than the rest... this pulls my eye towards a large area of blank featureless sky, which isn't interesting. I'm interested in what you are trying to take a picture of in this? was it the height of the object you liked, the sky being split by the arms of this thing? Nothing is really in focus - and object is not interesting enough or colourful enough for it to be of interest by leaving it in colour... seems misplaced.
Much better efforts seen here than in your previous posts - but you still need to think more about what you're really trying to take a picture of... take lots of time over planning.
Have you got a tripod? just a thought but maybe the camera is not totally still when your shooting?>