#21 is good but maybe make the word "ARC" a bit smaller and V O S smaller. #19 and 20 are good but maybe make the word ARC slightly bigger than the rest of the words. you can try using other colors too. Just not orange or grey. Thnx!
#19 I like the arc but not touching the C and can you make the arc possibly a gradient diminishing towards the point. Also maybe play with other colors, 3 color max. Make ARC a bit smaller font and Virtual Office Services a little bigger font. Center up ARC within the arc icon and also the Virtual Office Services. Thank you