With the intention of making improvements, I attempted the above sketch today again and it was more like I just need to take out time to study proportions well in and for my drawings; I've got absolutely no problem with my shadings but my construction is something I really need to look after.
The distribution of values displayed in the sketch above gives me much hope in myself that there's definitely more for my to explore and display and with time, I shall be showcasing more fascinating pieces.
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Kindly share your thoughts as comments below, I'll be glad to read and reply them all. Thanks.