I think some keys are better with icon only and others are better as text only.
Shift, Tab, Backspace and main Enter should have icons, with text being optional.
Control and Alt keys, should have text, with icons being optional.
Escape, Insert,Delete,Home,End,PageUp,PageDown,PrtScr/SysRq, Scroll Lock and Pause/Break are best as text only.
The Caps Lock key should say "Control" or have the ^ symbol. :-ž
... and the Space bar should be blank, even if the keyboard is backlit.
BTW, modifiers should always have the legend aligned in the middle vertically (except Tab which has
two symbols!), but could have other alignment on the horizontal.
1×1u keys look best with the text left-aligned inside a box, and then
the box centred.
Modifiers on the left look best with the symbol left-aligned, so that all keys on the left edge have the symbols in a single vertical line.
Modifiers on the right look best with the symbols right-aligned, so that all keys on the right edge have the symbols in a single horizontal line.
Hmm.. I wonder if there exists someone in this hobby that doesn't touch type the modifier keys?
On the right bottom row you could have any of: Windows-Menu, Windows-Fn, Fn-Windows or Fn-Menu.
And who knows the order of the Scroll Lock, Pause and Print Screen keys?