3D art brick hole/cave easy on paper pencil shade

Hello there drawing 3D optical art is my favourite time pass and focusing in shade work really cause a great pleasure to me and I felt pleased with every stroke of pencil and I hope it will rejoices your artistic sense also.....
3D brick hole
3D brick cave
pencil shading
3D optical illusion
3D trick art
optical trick art
3d art drawing
how to draw 3D
how to pencil shade
how to draw optical illusion
best pencil shade
best 3D drawing
best 3D art easy
3D versus reality
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