Possible to sharpen? Enough pixels?

[Anniez]

This is the basic file. I think my lens is not as sharp as it used to be.  I want to know how to make it as sharp as possible! How large could this image be over an 8x10?  Many thanks.

[Damien Symonds]

Hi Anne, if you're asking for a focus check, please post in the Focus Check section.  Make sure you read the posting guidelines in that section first.