This issue is a variant of The Flash (DC, 2016 series) #16 [Carmine Di Giandomenico Cover].
Credits in the issue list Dave Johnson as the artist for the variant cover, however this cover is signed by Yanick Paquette and Michel Lacombe.
An image can be found online illustrated by Dave Johnson featuring The Flash and Heatwave in a retro-style cover for The Flash #16 Variant Cover. The retro-style used is similar in theme to the Dave Johnson variant covers for issues #14 and #15. However this image was not used as the actual variant cover for this issue.