@Speedz, it's one of my first attempts - not the very first. The graphics tab took a while getting used to. & the image posted is the only size I've got. Like I said, I worked in 'fit to screen' zoom mode in PS for the most part without really bothering about the document size - & this is the result. So can't post any high res pic of the same.
@SoMxNemesis, I will try out Corel Painter a bit later. PS just seems easier to start with. For Painter, the options are many & I'll have to learn a bit about each one to get started, I think. PS, I feel like I can just jump into it straight off without really requiring to know each tool & it's options. [That's just the feel I get at this point of time. Maybe, my opinion will change once I've had an experience with both].
Thanks for your feedback, you guys. Keep 'em coming.