Thanks CP, JB and Steve for the input and support.
As you mentioned Rudi the brush lines are not as apparent to the naked eye but the edges are still pretty rough, so there's still room for improvement. CP I'm comfortable with the face but the rest of his body is still far from anywhere resembling masterclass. The only thing I'm really masterclass at is avoiding work.
Steve the big tree which I tried to make resembling an evergreen conifer is made up of several dried sedge flowers stuck around a central twig. Sedges are grasses found in wet places like banks of streams, swamps and such. Best bet is a trip to to your local dried flower shop. While the variety may differ a bit I believe they should be found around UK countryside and parks coz I definitely seen them around US in the temperate zones. Here's a pic:

1. I sprayed them with a quick once over with a greyish brown mix leaving some of the natural color exposed for contrast.
2. Stuck them to a central twig. As they have 3 sided stalks and skinny ones at that I had to add a wee bit of epoxy putty to "fatten" them up to be more rounded at the joints to the main trunk.
3. Applied slightly diluted PVA. Sprinkle them with Dill, the spice you see in the pic above (which as usual I borrowed indefinitely from the kitchen). Dill gives the fine, needle like leaves of conifers and pines.
4. Leave for a couple of hours for the glue to dry. Went over with spray of dark green (acrylic) at the bottom halves and a lighter green shade at the tops to simulate younger leaves. Avoid hitting the trunks if possible when airbrushing.
5. I gave my main trunk a reddish brown wash followed by a raw umber wash for contrast.
Of course you can't pick out the various shades in mine coz they're covered in snow and I often wonder why I bother sometimes with little details no else will know or see. Obsessive habits of detailing I guess.
Hope that helps.